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JEDEC SOLID STATE TECHNOLOGY ASSOCIATION
JESD8-21C.01
JUNE 2022
JEDEC
STANDARD
POD135 - 1.35 V Pseudo Open
(Revision of JESD8-21C, JUNE 2019)
Drain I/O
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JEDEC
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improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the
proper product for use by those other than JEDEC members, whether the standard is to be used either
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JEDEC standards and publications are adopted without regard to whether or not their adoption may
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The information included in JEDEC standards and publications represents a sound approach to product
specification and application, principally from the solid state device manufacturer viewpoint. Within the
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No claims to be in conformance with this standard may be made unless all requirements stated in the
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Published by
©JEDEC Solid State Technology Association 2022
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By downloading this file the individual agrees not to charge for or resell the resulting material.
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This document is copyrighted by JEDEC and may not be
reproduced without permission.
For information, contact:
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Arlington, VA 22201-2107
or refer to www.jedec.org under Standards-Documents/Copyright Information.
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JEDEC
JEDEC Standard No. 8-21C.01
Page 1
POD135 - 1.35V PSEUDO OPEN DRAIN I/O
(From JEDEC Board Ballot JCB-19-13, formulated under the cognizance of the JC-16 Committee on Interface
Technology.)
1 Scope
This standard defines the DC and AC single-ended (data) and differential (clock) operating conditions, I/O
impedances, and the termination and calibration scheme for 1.35V Pseudo Open Drain I/Os. The 1.35 V
Pseudo Open Drain interface, also known as POD135, is primarily used to communicate with GDDR5 or
GDDR5M SGRAM devices.
Multiple Classes of POD135 are expected to reside within the family of POD135 interfaces in order to
accommodate various device and market applications. The various classes standardized within the
context of POD135 are documented in the appendices of this document (e.g., POD135/Class A,
POD135/Class B, etc).
The core of this standard defines documents the subset of values common to all Classes of POD135 and
documents specification items left to definition within a specific Class as denoted by CDV which is
defined as Class Dependent Value.
The values specific to each particular class of POD135 are found in the annexes. See specific Class tables
for further details. (Note it does not follow that all specification values defined in a given Class are
necessarily different from the matching parameter in other Class within POD135. Multiple Classes may
reuse a given specification value if appropriate to the Class requirements.)
Classes were not part of the original POD135 specification. With the addition of Classes the original
POD135 values remain unchanged and grouped as POD135/Class A and POD135/Class C. The updates to
the specification are included in POD135/Class B and POD135/Class D. As other devices or market
applications are defined, they may use one of the already defined Class(es) or define a new Class.
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