参数资料
型号: IDT709089S15PF8
厂商: IDT, Integrated Device Technology Inc
文件页数: 3/18页
文件大小: 0K
描述: IC SRAM 512KBIT 15NS 100TQFP
标准包装: 750
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,同步
存储容量: 512K (64K x 8)
速度: 15ns
接口: 并联
电源电压: 4.5 V ~ 5.5 V
工作温度: 0°C ~ 70°C
封装/外壳: 100-LQFP
供应商设备封装: 100-TQFP(14x14)
包装: 带卷 (TR)
其它名称: 709089S15PF8
IDT709089/79S/L
High-Speed 64/32K x 8 Synchronous Dual-Port Static RAM
Pin Names
Industrial and Commercial Temperature Ranges
Left Port
CE 0L , CE 1L
R/ W L
OE L
A 0L - A 15L (1)
I/O 0L - I/O 7L
CLK L
ADS L
Right Port
CE 0R , CE 1R
R/ W R
OE R
A 0R - A 15R (1)
I/O 0R - I/O 7R
CLK R
ADS R
Names
Chip Enables
Read/Write Enable
Output Enable
Address
Data Input/Output
Clock
Address Strobe
CNTEN L
CNTRST L
FT /PIPE L
CNTEN R
CNTRST R
FT /PIPE R
V CC
GND
Counter Enable
Counter Reset
Flow-Through/Pipeline
Power
Ground
NOTE:
1. A 15X is a NC for IDT709079.
3242 tbl 01
Truth Table I—
Read/Write and Enable Control (1,2,3)
OE
X
X
X
L
H
CLK
X
CE 0
H
X
L
L
L
CE 1
X
L
H
H
H
R/ W
X
X
L
H
X
I/O 0-7
High-Z
High-Z
D IN
D OUT
High-Z
Mode
Deselected
Deselected
Write
Read
Outputs Disabled
3242 tbl 02
NOTES:
1. "H" = V IH, "L" = V IL, "X" = Don't Care.
2. ADS , CNTEN , CNTRST = X.
3. OE is an asynchronous input signal.
Truth Table II—Address Counter Control (1,2)
Previous
Internal
External
Address
An
Internal
Address
X
Address
Used
An
CLK
ADS
L (4)
CNTEN
X
CNTRST
H
I/O (3)
D I/O (n)
External Address Used
MODE
X
An
An + 1
H
L
(5)
H
D I/O (n+1)
Counter Enabled —Internal Address generation
X
An + 1
An + 1
H
H
H
D I/O (n+1)
External Address Blocked —Counter disabled (An + 1 reused)
X
X
A 0
X
X
L
(4)
D I/O (0)
Counter Reset to Address 0
5640 tbl 03
NOTES:
1. "H" = V IH, "L" = V IL, "X" = Don't Care.
2. CE 0 and OE = V IL ; CE 1 and R/ W = V IH .
3. Outputs configured in Flow-Through Output mode; if outputs are in Pipelined mode the data out will be delayed by one cycle.
4. ADS is independent of all other signals including CE 0 and CE 1 .
5. The address counter advances if CNTEN = V IL on the rising edge of CLK, regardless of all other signals including CE 0 and CE 1 .
3
6.42
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