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Integrated Device Technology Electronic Components Datasheet

IDT8MP656S Datasheet

CMOS Static RAM Module

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FEATURES:
• High-density 256K/12SK CMOS static RAM modules
• 16K x 16 organization (IDTSMP656) with SK x 16
option (IDTSMP62S)
• Upper byte (1/Os-,s) and lower byte (I/O,-al
separated control
-Flexibility in application
• Equivalent to JEDEC standard for future monolithic
16K x 16/SK x 16 static RAMs
• Fast access times
-SOns (max.) over commercial temperature range
• Low-power consumption
-Active: less than 1W (typ. in 16K x 16 organization)
-Standby: less than 1mW (typ.)
• Cost-effective plastic surface mounted RAM packages on
an epoxy laminate (FR4) substrate
• Offered in both DIP and SIP (single in-line) packages for
maximum space-saving flexibility
• Utilizes IDT7164s - high-performance 64K static RAMs
produced with advanced CEMOS~ technology
• CEMOS process virtually eliminates alpha particle soft
error rates (with no organic die coating)
• Single 5V (±10%) power supply
• Inputs and outputs directly TTL-compatible
DESCRIPTION:
The IDTSMP656/1DTSMP62S are 265K/12SK-bit high-speed
CMOS static RAMs constructed on an epoxy laminate substrate
using four IDT7164 SK x S static RAMs (IDTSMP656) or
two IDT7164 static RAMs (IDTSMP62S) in plastic surface
mount packages.
Functional equivalence to proposed monolithic static RAMs is
aChieved by utilization of an on-board decoder that interprets the
higher order address A'3to select one of the two SK x 16 RAMs as
the by-16 output and using LB and UB as two extra chip select
functions for lower byte (I/O,-al and upper byte (1/0s-,s) control,
respectively. (On IDTSMP62S SK x 16 option, A'3 needs to be
externally grounded for proper operation.) Extremely high speeds
are aChievable by the use of IDT7164s, fabricated in lOT's high-
performance, high-reliability CEMOS technology. This state-of-
the-art technology, combined with innovative circuit design
techniques, provides the fastest 256KI12SK static RAMs available.
The IDTSMP656/1DTSMP62S are available with access times
as fast as SOns over the commercial temperature range, with max-
imum operating power consumption of only 1.SW (IDTSMP656
16K x 16 option). The module also offers a full standby mode
of 440mW (max.).
The IDTSMP656/1DTSMP628 are offered in both a 4o-pin
plastic SIP, as well as a 4o-pin plastic DIP which conform to
JEDEC standard pinouts for future monolithic devices.
All inputs and outputs of the IDT8MP656/IDT8MP628 are
TTL-compatible and operate from a single 5V supply. (NOTE:
Both Vee pins need to be connected to the 5V supply and both
GND pins need to be grounded for proper operation.) Fully
asynchronous ciruitry is used requiring no clocks or refreshing
for operation and provides equal access and cycle times for
ease of use.
FUNCTIONAL BLOCK DIAGRAM
AO- 12 - - - . . - - - - - - - - - . . . ,
1/0,_8 _ _~+_--------,
I/O. -16----1H--t--------...,
WE7.~+++-----------,
OE~+++f----------,
IDT7164
'-+_ _-1 8K x 8
;+-+---1 CMOS
t-t-t--t----I STATIC
RAM
IDT7164
11~:E=~ 8K x 8
~ SCTMAOTISC
RAM
IDT7164
8K x 8
CMOS
STATIC
RAM
A'3
CS
LBTt~~=~
iJij----'
CEMOS is a trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
• 1986 Integrated Device Technology, Inc.
7-62
SSD8MP656-001
JULY 1986
Printed in U.S,A.


Integrated Device Technology Electronic Components Datasheet

IDT8MP656S Datasheet

CMOS Static RAM Module

No Preview Available !

IDT8MP656S/IDT8MP628S CMOS STATIC RAM
PLASTIC MODULES 256K (16K x 16-BIT) & 128K (8K x 16-BIT)
PIN CONFIGURATIONS
Vc~
\!g;(')
CS WE
1/0,6
I/O,.
UB
[8
I/O,.
NC
1/0,3
A'312)
1/0,2
A'2
I/O"
1/0,0
A"
A,o
I/0.
GND(')
A.
GND(')
1/0. A.
1/07 A7
1/06 As
1/05 A.
I/0. A.
1/03 A3
1/02 A2
1/0, A,
OE -"':':"'_ _""':'J""" Ao
DIP
TOP VIEW
SSD8MP656-002
COMMERCIAL TEMPERATURE RANGE
PIN NAMES
AO-,6
1/0,_8
CS
Vee
WE
OE
GND
Addresses
Data Input/Output
Chip Select
Power
Write Enable
Output Enable
Ground
SIP
SIDE VIEW
SSD8MP656-003
NOTES:
1. Both Vee pins need to be connected to the 5V supply, and both GND pins need to be grounded for proper operation.
2. A 13 (pin 39 - SIP; pin 35 - DIP) requires external grounding for IDTBMP628128K (BK x 16-Bit) option.
7-63


Part Number IDT8MP656S
Description CMOS Static RAM Module
Maker IDT
Total Page 2 Pages
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