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SMMS709 − APRIL 1998
D
D
Organization:
− TM4SK64KPN . . . 4 194 304 x 64 Bits
− TM8SK64KPN . . . 8 388 608 x 64 Bits
D
High-Speed, Low-Noise, Low-Voltage TTL
(LVTTL) Interface
D
Read Latencies 2 and 3 Supported
Single 3.3-V Power Supply
( 10% Tolerance)
D
Support Burst-Interleave and
Burst-Interrupt Operations
D
Designed for 66-MHz 4-Clock Systems
D
D
D
D
D
D
Burst Length Programmable to 1, 2, 4, and 8
D
JEDEC 144-Pin Small-Outline Dual-In-Line
Memory Module (SODIMM) Without Buffer
for Use With Socket
Four Banks for On-Chip Interleaving
(Gapless Access)
Ambient Temperature Range
0°C to 70°C
Gold-Plated Contacts
D
D
TM4SK64KPN — Uses Four 64M-Bit
Synchronous Dynamic RAMs (SDRAMs)
(4M × 16-Bit) in Plastic Thin Small-Outline
Packages (TSOPs)
Pipeline Architecture
Serial Presence Detect (SPD) Using
EEPROM
TM8SK64KPN — Uses Eight 64M-Bit
SDRAMs (4M × 16-Bit) in Plastic TSOPs
D
Byte-Read/Write Capability
D
Performance Ranges:
SYNCHRONOUS
CLOCK CYCLE
TIME
ACCESS TIME
CLOCK TO
OUTPUT
REFRESH
INTERVAL
t
t
t
t
t
CK3
10 ns
CK2
15 ns
AC3
7 ns
AC2
7 ns
REF
64 ms
’xSK64KPN−10
description
The TM4SK64KPN is a 32M-byte, 144-pin small-outline dual-in-line memory module (SODIMM). The SODIMM
is composed of four TMS664164DGE, 4194304 x 16-bit SDRAMs, each in a 400-mil, 54-pin plastic thin
small-outline package (TSOP) mounted on a substrate with decoupling capacitors. See the TMS664164 data
sheet (literature number SMOS695).
The TM8SK64KPN is a 64M-byte, 144-pin SODIMM. The SODIMM is composed of eight TMS664164DGE,
4194304 x 16-bit SDRAMs, each in a 400-mil, 54-pin plastic TSOP mounted on a substrate with decoupling
capacitors. See the TMS664164 data sheet (literature number SMOS695).
operation
The TM4SK64KPN operates as four TMS664164DGE devices that are connected as shown in the
TM4SK64KPN functional block diagram. The TM8SK64KPN operates as eight TMS664164DGE devices
connected as shown in the TM8SK64KPN 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.
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ꢪꢧ ꢨ ꢞ ꢮꢟ ꢩꢬ ꢤ ꢨ ꢧ ꢡꢠ ꢪꢧ ꢭ ꢧ ꢯꢡ ꢩꢣꢧ ꢟꢥꢰ ꢒ ꢬꢤ ꢢꢤ ꢦꢥ ꢧꢢ ꢞꢨ ꢥꢞ ꢦ ꢪꢤ ꢥꢤ ꢤꢟ ꢪ ꢡꢥ ꢬꢧꢢ
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Copyright 1998, Texas Instruments Incorporated
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ꢦ ꢬꢤ ꢟ ꢮꢧ ꢡꢢ ꢪꢞ ꢨ ꢦ ꢡꢟ ꢥꢞ ꢟꢫꢧ ꢥ ꢬꢧ ꢨ ꢧ ꢩꢢ ꢡꢪ ꢫꢦꢥ ꢨ ꢲ ꢞꢥꢬ ꢡꢫꢥ ꢟꢡꢥ ꢞꢦꢧ ꢰ
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1
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