TM4EP64BJN Datasheet, PDF (1/22 Pages) Texas Instruments – EXTENDED-DATA-OUT DYNAMIC RAM MODULES

TM4EP64BJN, TM4EP64BPN, TM4EP64CJN, TM4EP64CPN 4194304 BY 64-BIT
TM4EP72BJN, TM4EP72BPN, TM4EP72CJN, TM4EP72CPN 4194304 BY 72-BIT
EXTENDED-DATA-OUT DYNAMIC RAM MODULES
SMMS682A – AUGUST 1997– REVISED MARCH 1998
D Organization
– TM4EP64xxN-xx . . . 4 194 304 × 64 Bits
– TM4EP72xxN-xx . . . 4 194 304 × 72 Bits
D Single 3.3-V Power Supply
(±10% Tolerance)
D JEDEC 168-Pin Dual-In-Line Memory
Module (DIMM) Without Buffer for Use With
Socket
D TM4EP64xxN-xx — Utilizes Sixteen 16M-Bit
High-Speed (4M × 4-Bit) Dynamic RAMs
D TM4EP72xxN-xx — Utilizes Eighteen
16M-Bit High-Speed (4M × 4-Bit) Dynamic
RAMs
D High-Speed, Low-Noise LVTTL Interface
D High-Reliability Plastic 24/26-Lead
300-Mil-Wide Surface-Mount Small-Outline
J-Lead (SOJ) Package (DJ Suffix) and
24/26-Lead 300-Mil-Wide Surface-Mount
Thin Small-Outline Package (TSOP)
(DGA Suffix)
D Long Refresh Periods:
– TM4EPxxCxN: 64 ms (4 096 Cycles)
– TM4EPxxBxN: 32 ms (2 048 Cycles)
D 3-State Output
D Extended-Data-Out (EDO) Operation With
CAS-Before-RAS (CBR), RAS-Only, and
Hidden Refresh
D Serial Presence-Detect (SPD) Using
EEPROM
D Ambient Temperature Range
0°C to 70°C
D Gold-Plated Contacts
D Performance Ranges
ACCESS ACCESS ACCESS EDO
TIME
TIME TIME CYCLE
tRAC
(MAX)
tCAC
tAA tHPC
(MAX) (MAX) (MIN)
’4EPxxxxN-50 50 ns
13 ns 25 ns 20 ns
’4EPxxxxN-60 60 ns
15 ns 30 ns 25 ns
’4EPxxxxN-70 70 ns
18 ns 35 ns 30 ns
description
The TM4EP64xxN is a 32M-byte, 168-pin, dual-in-line memory module (DIMM). The DIMM is composed of
sixteen TMS42x409A, 4 194 304 × 4-bit EDO dynamic random-access memories (DRAMs), each in a 300-mil,
26-pin plastic thin small-outline package (TSOP) (DGA suffix) mounted on a substrate with decoupling
capacitors. See the TMS42x409A data sheet (literature number SMKS893). The TM4EP64xJN is available with
an SOJ package (DJ suffix).
The TM4EP72xxN is a 32M-byte, 168-pin DIMM. The DIMM is composed of eighteen TMS42x409A,
4 194 304 × 4-bit EDO DRAMs, each in a 300-mil, 26-pin plastic TSOP (DGA suffix) mounted on a substrate with
decoupling capacitors. See the TMS42x409A data sheet (literature number SMKS893). The TM4EP72xJN is
available with an SOJ packaage (DJ suffix).
operation
The TM4EP64xxN operates as 16 TMS42x409As that are connected as shown in the TM4EP64xxN functional
block diagram. The TM4EP72xxN operates as 18 TMS42x409As that are connected as shown in the
TM4EP72xxN 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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