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TM4SN64EPH Datasheet Synchronous Dynamic Ram Modules

Manufacturer: Texas Instruments

Overview: TM2SN64EPH 2ā097ā152 BY 64ĆBIT TM4SN64EPH 4ā194ā304 BY 64ĆBIT SYNCHRONOUS DYNAMIC RAM MODULES SMMS706A − MARCH 1998 − REVISED APRIL 1998 D Organization: − TM2SN64EPH . . . 2 097 152 x 64 Bits − TM4SN64EPH . . . 4 194 304 x 64 Bits D Single 3.3-V Power Supply (±10% Tolerance) D Designed for 66-MHz 4-Clock Systems D JEDEC 168-Pin Dual-In-Line Memory Module (DIMM) Without Buffer for Use With Socket D TM2SN64EPH — Uses Eight 16M-Bit Synchronous Dynamic RAMs (SDRAMs) (2M × 8-Bit) in Plastic Thin Small-Outline Packages (TSOPs) D TM4SN64EPH — Uses Sixteen 16M-Bit SDRAMs (2M × 8-Bit) in Plastic TSOPs D Byte-Read/Write Capability D Performance Ranges: D High-Speed, Low-Noise, Low-Voltage TTL (LVTTL) Interface D Read Latencies 2 and 3 Supported 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 Serial Presence Detect (SPD) Using EEPROM SYNCHRONOUS CLOCK CYCLE TIME (CtLC=K33)† tCK2 (CL = 2) ’xSN64EPH-10 10 ns † CL = CAS latency 15 ns ACCESS TIME CLOCK TO OUTPUT tAC3 tAC2 (CL = 3) (CL = 2) 7.5 ns 7.

General Description

The TM2SN64EPH is a 16M-byte, 168-pin dual-in-line memory module (DIMM).

The DIMM is posed of eight TMS626812BDGE, 2097152 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 TMS626812B data sheet (literature number SMOS693).

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