TI-SN74ACT7882.pdf
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SN74ACT7882
2048 × 18
CLOCKED FIRST-IN, FIRST-OUT MEMORY
SCAS445C – JUNE 1994 – REVISED APRIL 1998
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Member of the Texas Instruments
Widebus Family
D
Independent Asynchronous Inputs and
Outputs
D
Read and Write Operations Can Be
Synchronized to Independent System
Clocks
D
Programmable Almost-Full/Almost-Empty
Flag
D
Pin-to-Pin Compatible With SN74ACT7881
and SN74ACT7811
D
Input-Ready, Output-Ready, and Half-Full
Flags
D
Cascadable in Word Width and/or Word
Depth (See Application Information)
D
Fast Access Times of 11 ns With a 50-pF
Load
D
High Output Drive for Direct Bus Interface
D
Package Options Include 68-Pin Plastic
Leaded Chip Carriers (FN) or 80-Pin Shrink
Quad Flat (PN) Package
28 29
V
CC
Q14
Q13
GND
Q12
Q11
V
CC
Q10
Q9
GND
Q8
Q7
V
CC
Q6
Q5
GND
Q4
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
30
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
D14
D13
D12
D11
D10
D9
V
CC
D8
GND
D7
D6
D5
D4
D3
D2
D1
D0
31 32 33 34
V
GND
87 65493
D17
GND
RDCLK
RDEN1
RDEN2
OE
RESET
HF
Q0
Q1
WRTCLK
WRTEN1
WRTEN2
AF/AE
GND
IR
168672
35 36 37 38 39
66 65
27
DAF
GND
OR
V
64 63 62 61
40 41 42 43
GND
Q2
Q3
Q17
Q16
GND
Q15
D15
D16
CC
CC
FN PACKAGE
(TOP VIEW)
V
CC
V
CC
V
CC
Copyright 1998, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus is a trademark of Texas Instruments Incorporated.
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