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W19B320BTT7H-datasheetz
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W19B320BT/B DATASHEET
Publication Release Date: Dec. 25, 2007
- 1 - Revision A3
Table of Contents-
1. GENERAL DESCRIPTION .............................................................................................................. 4
2. FEATURES ...................................................................................................................................... 5
3. PIN CONFIGURATIONS.................................................................................................................. 7
4. BLOCK DIAGRAM ........................................................................................................................... 8
5. PIN DESCRIPTION.......................................................................................................................... 8
6. FUNCTIONAL DESCRIPTION ........................................................................................................ 9
6.1 Device Bus Operation ............................................................................................................. 9
6.1.1 Word/Byte Configuration ..........................................................................................................9
6.1.2 Reading Array Data ..................................................................................................................9
6.1.3 Writing Commands/Command Sequences...............................................................................9
6.1.4 Standby Mode ........................................................................................................................10
6.1.5 Automatic Sleep Mode ...........................................................................................................10
6.1.6 #RESET: Hardware Reset Pin................................................................................................10
6.1.7 Output Disable Mode..............................................................................................................11
6.1.8 autoselect Mode .....................................................................................................................11
6.1.9 Sector/Sector Block Protection and Unprotection...................................................................11
6.1.10 Write Protect (#WP)................................................................................................................11
6.1.11 Temporary Sector Unprotect ..................................................................................................12
6.1.12 Security Sector Flash Memory Region ...................................................................................12
6.1.13 Hardware Data Protection ......................................................................................................13
6.2 Command Definitions............................................................................................................ 13
6.2.1 Reading Array Data ................................................................................................................13
6.2.2 Reset Command.....................................................................................................................14
6.2.3 AUTOSELECT Command Sequence .....................................................................................14
6.2.4 Byte/Word Program Command Sequence..............................................................................15
6.2.5 Unlock Bypass Command Sequence .....................................................................................15
6.2.6 Chip Erase Command Sequence ...........................................................................................16
6.2.7 Sector Erase Command Sequence ........................................................................................16
6.2.8 Erase Suspend/Erase Resume Commands ...........................................................................17
6.3 Write Operation Status.......................................................................................................... 17
6.3.1 DQ7: #Data Polling.................................................................................................................17
6.3.2 RY/#BY: Ready/#Busy ...........................................................................................................18
6.3.3 DQ6: Toggle Bit I....................................................................................................................18
6.3.4 DQ2: Toggle Bit II...................................................................................................................19
6.3.5 Reading Toggle Bits DQ6/DQ2...............................................................................................19
6.3.6 DQ5: Exceeded Timing Limits ................................................................................................19
W19B320BT/B DATASHEET
Publication Release Date:Dec.25, 2007
- 2 - Revisionv A3
6.3.7 DQ3: Sector Erase Timer .......................................................................................................20
7. TABLE OF OPERATION MODES ................................................................................................. 21
7.1 Device Bus Operations ......................................................................................................... 21
7.2 AUTOSELECT Codes (High Voltage Method) ..................................................................... 22
7.3 Sector Address Table (Top Boot Block) ............................................................................... 23
7.4 Sector Address Table (Bottom Boot Block) .......................................................................... 25
7.5 Top Boot Sector/Sector Block Address for Protection/Unprotection) ................................... 27
7.6 CFI Query Identification String.............................................................................................. 29
7.6.1 System Interface String ..........................................................................................................29
7.6.2 Device Geometry Definition....................................................................................................30
7.6.3 Primary Vendor-Specific Extended Query ..............................................................................31
7.6.4 Command Definitions .............................................................................................................32
7.6.5 Write Operation Status ...........................................................................................................33
7.7 Temporary Sector Unprotect Algorithm ................................................................................ 33
7.8 In-System Sector Protect/Unprotect Algorithms ................................................................... 35
7.9 Security Sector Protect Verify ............................................................................................... 36
7.10 Program Algorithm ................................................................................................................ 36
7.11 Erase Algorithm..................................................................................................................... 37
7.12 Data Polling Algorithm........................................................................................................... 37
7.13 Toggle Bit Algorithm.............................................................................................................. 38
8. ELECTRICAL CHARACTERISTICS.............................................................................................. 39
8.1 Absolute Maximum Ratings .................................................................................................. 39
8.2 Operating Ranges ................................................................................................................. 39
8.3 DC Characteristics ................................................................................................................ 40
8.4 CMOS Compatible ................................................................................................................ 40
8.5 AC Characteristics ................................................................................................................ 41
8.6 Test Condition ....................................................................................................................... 41
8.6.1 AC Test Load and Waveforms ...............................................................................................41
8.7 Read-Only Operations .......................................................................................................... 42
8.8 Hardware Reset (#RESET)................................................................................................... 42
8.9 Word/Byte Configuration (#BYTE) ........................................................................................ 42
8.10 Erase and Program Operation .............................................................................................. 43
8.11 Temporary Sector Unprotect................................................................................................. 43
8.12 Alternate #CE Controlled Erase and Program Operations ................................................... 44
9. TIMING WAVEFORMS .................................................................................................................. 45
9.1 AC Read Waveform .............................................................................................................. 45
W19B320BT/B DATASHEET
Publication Release Date:Dec. 25, 2007
- 3 - Revisionv A3
9.2 Reset Waveform ................................................................................................................... 45
9.3 #BYTE Waveform for Read Operation.................................................................................. 46
9.4 #BYTE Waveform for Write Operation.................................................................................. 46
9.5 Programming Waveform ....................................................................................................... 47
9.6 Accelerated Programming Waveform................................................................................... 47
9.7 Chip/Sector Erase Waveform ............................................................................................... 48
9.8 Back-to back Read/Write Cycle Waveform........................................................................... 48
9.9 #Data Polling Waveform (During Embedded Algorithms) .................................................... 49
9.10 Toggle Bit Waveform (During Embedded Algorithms).......................................................... 49
9.11 DQ 2 vs. DQ6 Waveform ...................................................................................................... 50
9.12 Temporary Sector Unprotect Timing Diagram ...................................................................... 50
9.13 Sector/Sector Block Protect and Unprotect Timing Diagram................................................ 50
9.14 Alternate #CE Controlled Write (Erase/Program) Operation Timing .................................... 51
10. LATCHUP CHARACTERISTICS ................................................................................................... 52
11. CAPACITANCE.............................................................................................................................. 52
12. ORDERING INFORMATION.......................................................................................................... 53
13. PACKAGE DIMENSIONS .............................................................................................................. 54
13.1 TFBGA48ball (6X8 mm^2, Ø=0.40mm) ................................................................................ 54
13.2 48-Pin Standard Thin Small Outline Package ...................................................................... 55
14. VERSION HISTORY ...................................................................................................................... 56
W19B320BT/B DATASHEET
Publication Release Date:Dec.25, 2007
- 4 - Revisionv A3
1. GENERAL DESCRIPTION
The W19B320BT/B is a 32Mbit, 2.7~3.6-volt single bank CMOS flash memory organized as 4M x 8 or
2M × 16 bits. The word-wide (× 16) data appears on DQ15-DQ0, and byte-wide (x 8) data appears on
DQ7-DQ0. The device can be programmed and erased in-system with a standard 3.0-volt power
supply. A 12-volt V
PP is not required. The unique cell architecture of the W19B320BT/B results in fast
program/erase operations with extremely low current consumption (compared to other comparable 3-
volt flash memory products). The device can also be programmed and erased by using standard
EPROM programmers.
W19B320BT/B DATASHEET
Publication Release Date:Dec. 25, 2007
- 5 - Revisionv A3
2. FEATURES
Performance
• 2.7~3.6-volt write (program and erase) operations
• Fast write operation
− Sector erases time: 0.4 Sec (typical)
− Chip erases time: 30Sec (typical)
− Byte/Word programming time: 7/9 s (typical)
• Read access time: 70 ns
• Typical program/erase cycles: 100K
• Twenty-year data retention
• Ultra low power consumption
− Active current (Read): 10 mA (typical)
− Active current (Read while Erase): 21 mA (typical)
− Standby current: 0.2 μA (typical)
Architecture
• Sector erase architecture
− Eight 8KB, and sixty-three 64KB sectors
− Top or bottom boot block configurations available
− Supports full chip erase
• Security Sector Size: 256 Bytes
− The Security Sector is an OTP; once the sector is programmed, it cannot be erased
• JEDEC standard byte-wide and word-wide pinouts
• Manufactured on WinStack 0.13μm process technology
• Available packages: 48-pin TSOP and 48-ball TFBGA (6x8mm)
Software Features
• Compatible with common Flash Memory Interface (CFI) specification
− Flash device parameters stored directly on the device
− Allows software driver to identify and use a variety of different current and future Flash products
• Erase Suspend/Erase Resume
− Suspends erase operations to allow programming in same bank
• End of program detection
− Software method: Toggle bit/Data polling
• Unlock Bypass Program command
− Reduces overall programming time when issuing multiple program command sequences
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