参数资料
型号: IDT70T631S
厂商: 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与3.3V 5011 2.5V的接口× 18 ASYNCHRONO美国双端口静态RAM
文件页数: 6/27页
文件大小: 342K
代理商: IDT70T631S
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM Industrial and Commercial Temperature Ranges
Pin Names
Left Port
Right Port
Names
Preliminary
6
CE
0L
,
CE
1L
CE
0R
,
CE
1R
Chip Enables (Input)
R/
W
L
R/
W
R
Read/Write Enable (Input)
OE
L
OE
R
Output Enable (Input)
A
0L
- A
18L
(1)
A
0R
- A
18R
(1)
Address (Input)
I/O
0L
- I/O
17L
I/O
0R
- I/O
17R
Data Input/Output
SEM
L
SEM
R
Semaphore Enable (Input)
INT
L
INT
R
Interrupt Flag (Output)
BUSY
L
BUSY
R
Busy Flag (Output)
UB
L
UB
R
Upper Byte Select (Input)
LB
L
LB
R
Lower Byte Select (Input)
V
DDQL
V
DDQR
Power (I/O Bus) (3.3V or 2.5V)
(2)
(Input)
OPT
L
OPT
R
Option for selecting V
DDQX
(2,3)
(Input)
ZZ
L
ZZ
R
Sleep Mode Pin
(4)
(Input)
M/
S
Master or Slave Select (Input)
(5)
V
DD
Power (2.5V)
(2)
(Input)
V
SS
Ground (0V) (Input)
TDI
Test Data Input
TDO
Test Data Output
TCK
Test Logic Clock (10MHz) (Input)
TMS
Test Mode Select (Input)
TRST
Reset (Initialize TAP Controller) (Input)
5670 tbl 01
NOTES:
1. Address A
18
x is a NC for IDT70T631.
2. V
DD
, OPT
X
, and V
DDQX
must be set to appropriate operating levels prior to
applying inputs on I/O
X
.
3. OPT
X
selects the operating voltage levels for the I/Os and controls on that port.
If OPT
X
is set to V
DD
(2.5V), then that port's I/Os and controls will operate at 3.3V
levels and V
DDQX
must be supplied at 3.3V. If OPT
X
is set to V
SS
(0V), then that
port's I/Os and controls will operate at 2.5V levels and V
DDQX
must be supplied
at 2.5V. The OPT pins are independent of one another—both ports can operate
at 3.3V levels, both can operate at 2.5V levels, or either can operate at 3.3V
with the other at 2.5V.
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. It is recommended that boundry scan not be
operated during sleep mode.
5.
BUSY
is an input as a Slave (M/
S
=V
IL
) and an output when it is a Master
(M/
S
=V
IH
).
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