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70T659S15BCGI Datasheet(PDF) 1 Page - Integrated Device Technology

Part # 70T659S15BCGI
Description  HIGH-SPEED 2.5V 256/128K x 36 ASYNCHRONOUS DUAL-PORT STATIC RAM
Download  28 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

70T659S15BCGI Datasheet(HTML) 1 Page - Integrated Device Technology

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©2015 Integrated Device Technology, Inc.
1
JULY 2015
DSC-5632/8
CE0R
R/
WR
CE1R
BE0R
BE1R
BE2R
BE3R
256/128K x 36
MEMORY
ARRAY
Address
Decoder
A17R(1)
A0R
Address
Decoder
CE0L
R/
WL
CE1L
BE0L
BE1L
BE2L
BE3L
Dout0-8_L
Dout9-17_L
Dout18-26_L
Dout27-35_L
Dout0-8_R
Dout9-17_R
Dout18-26_R
Dout27-35_R
B
E
0
L
B
E
1
L
B
E
2
L
B
E
3
L
B
E
3
R
B
E
2
R
B
E
1
R
B
E
0
R
I/O0L- I/O35L
A17L(1)
A0L
I/O0R -I/O35R
Di n_L
ADDR_L
Di n_R
ADDR_R
OER
OEL
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
SEML
INTL(3)
BUSYL(2,3)
M/
S
R/
WL
OEL
R/
WR
OER
CE0L
CE1L
CE0R
CE1R
BUSYR(2,3)
SEMR
INTR(3)
4869 drw 01
ZZ
CONTROL
LOGIC
ZZL
(4)
ZZR
(4)
JTAG
TCK
TRST
TMS
TDI
TDO
Functional Block Diagram
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
Separate byte controls for multiplexed bus and bus
matching compatibility
Sleep Mode Inputs on both ports
Supports JTAG features compliant to IEEE 1149.1
Single 2.5V (±100mV) power supply for core
LVTTL-compatible, selectable 3.3V (±150mV)/2.5V (±100mV)
power supply for I/Os and control signals on each port
Available in a 256-ball Ball Grid Array, 208-pin Plastic Quad
Flatpack and 208-ball fine pitch Ball Grid Array.
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Features
True Dual-Port memory cells which allow simultaneous
access of the same memory location
High-speed access
– Commercial:10/12/15ns(max.)
– Industrial: 10/12ns (max.)
RapidWrite Mode simplifies high-speed consecutive write
cycles
Dual chip enables allow for depth expansion without
external logic
IDT70T651/9 easily expands data bus width to 72 bits or
more using the Master/Slave select when cascading more
than one device
M/S = VIH for BUSY output flag on Master,
M/S = VIL for BUSY input on Slave
Busy and Interrupt Flags
HIGH-SPEED 2.5V
256/128K x 36
ASYNCHRONOUS DUAL-PORT
STATIC RAM
WITH 3.3V 0R 2.5V INTERFACE
IDT70T651/9S
NOTES:
1. Address A17x is a NC for IDT70T659.
2. BUSY is an input as a Slave (M/S=VIL) and an output when it is a Master (M/S=VIH).
3. BUSY and INT are non-tri-state totem-pole outputs (push-pull).
4. The sleep mode pin shuts off all dynamic inputs, except JTAG inputs, when asserted. OPTx, INTx, M/S and the sleep
mode pins themselves (ZZx) are not affected during sleep mode.
Green parts available, see ordering information


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