参数资料
型号: IDT70T659S10BC
厂商: IDT, Integrated Device Technology Inc
文件页数: 1/27页
文件大小: 0K
描述: IC SRAM 4MBIT 10NS 256BGA
标准包装: 6
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,异步
存储容量: 4.5M(128K x 36)
速度: 10ns
接口: 并联
电源电压: 2.4 V ~ 2.6 V
工作温度: 0°C ~ 70°C
封装/外壳: 256-LBGA
供应商设备封装: 256-CABGA(17x17)
包装: 托盘
其它名称: 70T659S10BC
HIGH-SPEED 2.5V
IDT70T651/9S
Features
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
True Dual-Port memory cells which allow simultaneous
256/128K x 36
ASYNCHRONOUS DUAL-PORT
STATIC RAM
WITH 3.3V 0R 2.5V INTERFACE
access of the same memory location
High-speed access
– Commercial: 8/10/12/15ns (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 = V IH for BUSY output flag on Master,
M/ S = V IL for BUSY input on Slave
Busy and Interrupt Flags
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
Green parts available, see ordering information
Functional Block Diagram
BE 3L
BE 2L
BE 1L
BE 0L
R/ W L
BE 3R
BE 2R
BE 1R
BE 0R
R/ W R
B B
E E
B B
E E
B B B B
E E E E
CE 0L
CE 1L
0 1
L L
2 3
L L
3 2 1 0
R R R R
CE 0R
CE 1R
Dout9-17_R
OE L
Dout0-8_L Dout0-8_R
Dout9-17_L
Dout18-26_L Dout18-26_R
Dout27-35_L Dout27-35_R
256/128K x 36
MEMORY
ARRAY
OE R
I/O 0L- I/O 35L
Di n_L
Di n_R
I/O 0R - I/O 35R
A 17L(1)
A 0L
Address
Decoder
ADDR_L
ADDR_R
Address
Decoder
A 17R(1)
A 0R
CE 0L
CE 1L
OE L
ARBITRATION
INTERRUPT
SEMAPHORE
OE R
CE 0R
CE 1R
TDI
TD O
JTAG
TC K
TMS
TRST
BUSY L (2,3)
R/ W L
LOGIC
R/ W R
BUSY R(2,3)
SEM L
INT L(3)
M/ S
SEM R
INT R(3)
ZZ L
(4)
ZZ
CONTROL
ZZ R
(4)
NOTES:
1. Address A 17x is a NC for IDT70T659.
LOGIC
2. BUSY is an input as a Slave (M/ S =V IL ) and an output when it is a Master (M/ S =V IH ).
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, INT x, M/ S and the sleep
mode pins themselves (ZZx) are not affected during sleep mode.
1
?2009 Integrated Device Technology, Inc.
4869 drw 01
JANUARY 2009
DSC-5632/6
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