TM2SJ64EPU Datasheet, PDF (1/34 Pages) Texas Instruments – 2097152 BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULES ─ SODIMM

TM2SJ64EPU 2ā097ā152 BY 64ĆBIT
SYNCHRONOUS DYNAMIC RAM MODULES Ċ SODIMM
D Organization: 2 097 152 x 64 Bits
D Single 3.3-V Power Supply
(±10% Tolerance)
D Designed for 66-MHz 4-Clock Systems
D JEDEC 144-Pin Small-Outline Dual-In-Line
Memory Module (SODIMM) Without Buffer
for Use With Socket
D Uses Eight 16M-Bit Synchronous Dynamic
RAMs (SDRAMs) (2M × 8-Bit) in Plastic Thin
Small-Outline Packages (TSOPs)
D Byte-Read/Write Capability
D Read Latencies 2 and 3 Supported
D Performance Ranges:
SMMS687B − AUGUST 1997 − REVISED FEBRUARY 1998
D Support Burst-Interleave and
Burst-Interrupt Operations
D Burst Length Programmable to 1, 2, 4,
and 8
D Two Banks for On-Chip Interleaving
(Gapless Access)
D Ambient Temperature Range
0°C to 70°C
D Gold-Plated Contacts
D Pipeline Architecture
D High-Speed, Low-Noise Low-Voltage TTL
(LVTTL) Interface
D Serial Presence Detect (SPD) Using
EEPROM
SYNCHRONOUS
CLOCK CYCLE
TIME
(CtLC=K33)^‡
tCK2
(CL = 2)
ACCESS TIME
CLOCK TO
OUTPUT
tAC3
tAC2
(CL = 3) (CL = 2)
’xSJ64EPU-12A†
12 ns
15 ns
9 ns
9 ns
’xSJ64EPU-12
12 ns
18 ns
9 ns
10 ns
† _{−12A speed device is supported only at −5 to 10% VDD}
‡ _{CL = CAS latency}
REFRESH
INTERVAL
64 ms
64 ms
description
The TM2SJ64EPU is a 16M-byte, 144-pin small-outline dual-in-line memory module (SODIMM). The SODIMM
is composed of eight TMS626812DGE, 2 097 152 x 8-bit SDRAMs, each in a 400-mil, 44-pin plastic thin
small-outline package (TSOP) mounted on a substrate with decoupling capacitors. See the TMS626812 data
sheet (literature number SMOS687).
operation
The TM2SJ64EPU operates as eight TMS626812DGE devices that are connected as shown in the
TM2SJ64EPU functional block diagram.
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.
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.
Copyright  1998, Texas Instruments Incorporated
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