TEXAS INSTRUMENTS TM2SN64EPH, 2097152 BY 64-BIT TM4SN64EPH, 4194304 BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULES - Data Manual/Instructions

查询TM2SN64EPH供应商 TM2SN64EPH 2097152 BY 64-BIT

TM4SN64EPH 4194304 BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULES SMMS706A – MARCH 1998 – REVISED APRIL 1998

Organization: High-Speed, Low-Noise, Low-Voltage TTL – TM2SN64EPH . . . 2 097 152 x 64 Bits (LVTTL) Interface – TM4SN64EPH . . . 4 194 304 x 64 Bits

Read Latencies 2 and 3 Supported

Single 3.3-V Power Supply

Support Burst-Interleave and

(±10% Tolerance)

Burst-Interrupt Operations

Designed for 66-MHz 4-Clock Systems

Burst Length Programmable to 1, 2, 4, JEDEC 168-Pin Dual-In-Line Memory and 8

Module (DIMM) Without Buffer for Use With

Two Banks for On-Chip Interleaving

Socket

(Gapless Access)

TM2SN64EPH — Uses Eight 16M-Bit

Ambient Temperature Range

Synchronous Dynamic RAMs (SDRAMs)

0°C to 70°C

(2M × 8-Bit) in Plastic Thin Small-Outline

Gold-Plated Contacts

Packages (TSOPs)

Pipeline Architecture

TM4SN64EPH — Uses Sixteen 16M-Bit

Serial Presence Detect (SPD) Using

SDRAMs (2M × 8-Bit) in Plastic TSOPs

EEPROM

Byte-Read/Write Capability Performance Ranges:

SYNCHRONOUS ACCESS TIME REFRESH CLOCK CYCLE CLOCK TO INTERVAL TIME OUTPUT

t CK3 t CK2 t AC3 t AC2 (CL = 3)† (CL = 2) (CL = 3) (CL = 2)

’x SN64EPH-10 10 ns 15 ns 7.5 ns 7.5 ns 64 ms CL = CAS latency

description The TM2SN64EPH is a 16M-byte, 168-pin dual-in-line memory module (DIMM). The DIMM is composed 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). The TM4SN64EPH 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.

operation The TM2SN64EPH operates as eight TMS626812BDGE devices that are connected as shown in the TM2SN64EPH functional block diagram. The TM4SN64EPH operates as sixteen TMS626812BDGE devices connected as shown in the TM4SN64EPH 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.

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.

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