參數(shù)資料
型號: IDT70T631S
廠商: Integrated Device Technology, Inc.
英文描述: 122 x 32 pixel format, Compact LCD size
中文描述: 高速2.5V的512/256K與3.3V 5011 2.5V的接口× 18 ASYNCHRONO美國雙端口靜態(tài)RAM
文件頁數(shù): 1/27頁
文件大?。?/td> 342K
代理商: IDT70T631S
2003 Integrated Device Technology, Inc.
1
NOVEMBER 2003
DSC-5670/3
Functional Block Diagram
Full hardware support of semaphore signaling between
ports on-chip
On-chip port arbitration logic
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 in
BGA-208 and BGA-256 packages
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, 144-pin Thin 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: 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
IDT70T633/1 easily expands data bus width to 36 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
HIGH-SPEED 2.5V
512/256K x 18
ASYNCHRONOUS DUAL-PORT
STATIC RAM
WITH 3.3V 0R 2.5V INTERFACE
PRELIMINARY
IDT70T633/1S
1.
2.
3
4.
Address A
18
x is a NC for IDT70T631.
BUSY
is an input as a Slave (M/
S
=V
IL
) and an output when it is a Master (M/
S
=V
IH
).
BUSY
and
INT
are non-tri-state totem-pole outputs (push-pull).
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.
CE
0R
CE
1R
R/
W
R
LB
R
UB
R
512/256K x 18
MEMORY
ARRAY
Address
Decoder
A
18R
(1)
A
0R
Address
Decoder
CE
0L
CE
1L
R/
W
L
LB
L
UB
L
Dout0-8_L
Dout9-17_L
Dout0-8_R
Dout9-17_R
B
E
0
L
B
E
1
L
B
E
1
R
B
E
0
R
I/O
0L
- I/O
17L
I/O
0R
- I/O
17R
Din_L
ADDR_L
Din_R
ADDR_R
OE
R
OE
L
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
M/
S
R/
W
L
OE
L
R/
W
R
OE
R
CE
0L
CE
1L
CE
0R
CE
1R
5670 drw 01
A
18L
(1)
A
0L
ZZ
CONTROL
LOGIC
ZZ
L(4)
ZZ
R(4)
JTAG
TCK
TMS
TRST
TDI
TDO
INT
L(3)
SEM
L
BUSY
L(2,3)
BUSY
R(2,3)
SEM
R
INT
R(3)
NOTES:
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