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TM2TR72EPH

更新时间： 2024-11-19 02:58:39
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SYNCHRONOUS DYNAMIC RAM MODULES

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TM2TR72EPH 数据手册

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SMMS702B − JANUARY 1998 − REVISED APRIL 1998  
D
D
Organization:  
D
D
JEDEC 168-Pin Dual-In-Line Memory  
Module (DIMM) Without Buffer for Use With  
Socket  
− TM2TR64EPH . . . 2 097 152 x 64 Bits  
− TM4TR64EPH . . . 4 194 304 x 64 Bits  
− TM2TR72EPH . . . 2 097 152 x 72 Bits  
− TM4TR72EPH . . . 4 194 304 x 72 Bits  
High-Speed, Low-Noise, Low-Voltage TTL  
(LVTTL) Interface  
Single 3.3-V Power Supply  
( 10% Tolerance)  
D
Read Latencies 2 and 3 Supported  
D
Support Burst-Interleave and  
Burst-Interrupt Operations  
D
Designed for 100-MHz 4-Clock Systems  
D
TM2TR64EPH — Uses Eight 16M-Bit  
Synchronous Dynamic RAMs (SDRAMs)  
(2M × 8-Bit) in Plastic Thin Small-Outline  
Packages (TSOPs)  
D
D
D
D
D
D
Burst Length Programmable to 1, 2, 4,  
and 8  
Two Banks for On-Chip Interleaving  
(Gapless Access)  
D
D
D
TM4TR64EPH — Uses Sixteen 16M-Bit  
SDRAMs (2M × 8-Bit) in Plastic TSOPs  
TM2TR72EPH — Uses Nine 16M-Bit  
SDRAMs (2M × 8-Bit) in Plastic TSOPs  
TM4TR72EPH — Uses Eighteen 16M-Bit  
SDRAMs (2M × 8-Bit) in Plastic TSOPs  
Byte-Read/Write Capability  
Performance Ranges:  
Ambient Temperature Range  
0°C to 70°C  
Gold-Plated Contacts  
Pipeline Architecture  
Serial Presence Detect (SPD) Using  
EEPROM  
D
D
SYNCHRONOUS  
CLOCK CYCLE  
TIME  
ACCESS TIME  
CLOCK TO  
OUTPUT  
REFRESH  
INTERVAL  
t
t
t
t
AC2  
CK3  
CK2  
AC3  
†
(CL = 3)  
(CL = 2) (CL = 3) (CL = 2)  
’xTRxxEPH-8  
’xTRxxEPH-8A  
8 ns  
10 ns  
15 ns  
6 ns  
6 ns  
6 ns  
64 ms  
64 ms  
8 ns  
7.5 ns  
†
CL = CAS latency  
description  
The TM2TR64EPH is a 16M-byte, 168-pin DIMM. The DIMM is composed of eight TMS626812BDGE 2097152  
x 8-bit SDRAMs, each in a 400-mil, 44-pin plastic TSOP mounted on a substrate with decoupling capacitors.  
See the TMS626812B data sheet (literature number SMOS693).  
The TM4TR64EPH is a 32M-byte, 168-pin DIMM. The DIMM is composed of sixteen TMS626812BDGE  
2097152 x 8-bit SDRAMs, each in a 400-mil, 44-pin plastic TSOP mounted on a substrate with decoupling  
capacitors.  
The TM2TR72EPH is an 16M-byte, 168-pin DIMM. The DIMM is composed of nine TMS626812BDGE  
2097152 x 8-bit SDRAMs, each in a 400-mil, 44-pin plastic TSOP mounted on a substrate with decoupling  
capacitors.  
The TM4TR72EPH is a 32M-byte, 168-pin DIMM. The DIMM is composed of eighteen TMS626812BDGE  
2097152 x 8-bit SDRAMs, each in a 400-mil, 44-pin plastic TSOP mounted on a substrate with decoupling  
capacitors.  
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.  
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Copyright 1998, Texas Instruments Incorporated  
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ꢜ ꢠ ꢝ ꢜꢕ ꢖꢪ ꢘꢗ ꢛ ꢣꢣ ꢡꢛ ꢙ ꢛ ꢚ ꢠ ꢜ ꢠ ꢙ ꢝ ꢥ  
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1
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443  
1234567...22

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