- 您现在的位置：买卖IC网 > Sheet目录330 > IDT71V432S5PFGI (IDT, Integrated Device Technology Inc)IC SRAM 1MBIT 5NS 100TQFP
IDT71V432, 32K x 32 CacheRAM
3.3V Synchronous SRAM with Burst Counter, Single Cycle Deselect
Pin Definitions (1)
Commercial and Industrial Temperature Ranges
Symbol
A 0 –A 14
Pin Function
Address Inputs
I/O
I
Active
N/A
Description
Synchronous Address inputs. The address re gister is triggered by a combination
of the rising edge of CLK and ADSC Low or ADSP Low and CE Low.
ADSC
Address Status
I
LOW
Sy nchronous Ad dress Status from Cache Controller. ADSC is an active LOW
(Cache Controller)
input that is used to load the address registers with new addresses. ADSC is
NOT GATED by CE .
ADSP
ADV
Address Status
(Processor)
Burst Address Advance
I
I
LOW
LOW
Synchronous Address Status from Processor. ADSP is an active LOW input that is
used to load the address registers with new addresses. ADSP is gated by CE .
Synchronous Address Advance. ADV is an active LOW input that is used to
advance the internal burst counter, co ntrolling burst access after the initial
address is loaded. When this input is HIGH the burst counter is not incremented;
that is, there is no address advance.
BWE
Byte Write Enable
I
LOW
Synchronous byte write enable gates the byte write inputs BW 1 – BW 4 . If BWE is
LOW at the rising edge of CLK then BW X inputs are passed to the next stage in
the circuit. A byte write can still be blocked if ADSP is LOW at the rising edge of
CLK. If ADSP is HIGH and BW X is LOW at the rising edge of CLK then data will
be written to the SRAM. If BWE is HIGH then the byte write inputs are blocked
and only GW can initiate a write cycle.
BW 1 - BW 4
Individual Byte
Write Enables
I
LOW
Synchronous byte write enables. BW 1 controls I/O(7:0), BW 2 controls I/O(15:8),
etc. Any active byte write causes all outputs to be disabled. ADSP LOW
disables all byte writes. BW 1 – BW 4 must meet specified setup and hold times
with respect to CLK.
CE
Chip Enable
I
LOW
Synchronous chip enable. CE is used with CS 0 and CS 1 to enable the
IDT71V432. CE also gates ADSP .
CLK
Clock
I
N/A
This is the clock input to the IDT71V432. All timing referenc es for the device are
made with respect to this input.
CS 0
Chip Select 0
I
HIGH
Synchronous active HIGH chip select. CS 0 is used with CE and CS 1 to enable
the chip.
CS 1
Chip Select 1
I
LOW
Sy nchronous active LOW chip select. CS 1 is used with CE and CS 0 to enable
the chip.
GW
Global Write Enable
I
LOW
Synchronous global write enable. This input will write all four 8-bit data bytes
when LOW on the rising edge of CLK. GW supercedes individual byte write
enables.
I/O 0 –I/O 31
Data Input/Output
I/O
N/A
Synchronous data input/output (I/O) pins. Both the data input path and data output
path are registered and triggered by the rising edge of CLK.
LBO
Linear Burst Order
I
LOW
Asynchronous burst order sele ction DC input. When LBO is HIGH the Interleaved
(Intel) burst sequence is selected. When LBO is LOW the Linear (PowerPC) burst
sequence is selected. LBO is a static DC input and must not change state while
the device is operating.
OE
Output Enable
I
LOW
Asynchronous output enable. When OE is LOW the data output drivers are
enabled on the I/O pins. OE is gated internally by a delay circuit driven by CE ,
CS 0 , and CS 1 . In dual-bank mode, when the user is utilizing two banks of
IDT71V432 and toggling back and forth between them using CE , the internal
de lay circuit delays the OE activation of the data output drivers by one cycle to
prevent bus contention between the banks. When used in single bank mode CE ,
CS 0 , and CS 1 are all tied active and there is no output enable delay. When OE is
HIGH the I/O pins are in a high-impedence state.
V DD
V SS
ZZ
Power Supply
Ground
Sleep Mode
N/A
N/A
I
N/A
N/A
HIGH
3.3V power supply inputs.
Ground pins.
Asynchronous sleep mode input. ZZ HIGH will gate the CLK internally and power
down the IDT71V432 to its lowest power consumption level. Data retention is
guaranteed in Sleep Mode.
NOTE:
1. All synchronous inputs must meet specified setup and hold times with respect to CLK.
6.42
3104 tbl 02
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
IDT71V546S133PFGI
IC SRAM 4MBIT 133MHZ 100TQFP
IDT71V547S80PFGI
IC SRAM 4MBIT 80NS 100TQFP
IDT71V632S7PFGI
IC SRAM 2MBIT 7NS 100TQFP
IDT71V65703S85BGGI
IC SRAM 9MBIT 85NS 119BGA
IDT71V65803S150BGI
IC SRAM 9MBIT 150MHZ 119BGA
IDT71V67602S166BGG
IC SRAM 9MBIT 166MHZ 119BGA
IDT71V67603S166PFGI
IC SRAM 9MBIT 166MHZ 100TQFP
IDT71V67703S85BGGI
IC SRAM 9MBIT 85NS 119BGA
相关代理商/技术参数
IDT71V432S5PFGI8
功能描述:IC SRAM 1MBIT 5NS 100TQFP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:72 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 同步 存储容量:4.5M（256K x 18） 速度:133MHz 接口:并联 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 封装/外壳:100-LQFP 供应商设备封装:100-TQFP（14x20） 包装:托盘
IDT71V432S6PF
功能描述:IC SRAM 1MBIT 6NS 100TQFP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:576 系列:- 格式 - 存储器:闪存 存储器类型:闪存 - NAND 存储容量:512M（64M x 8） 速度:- 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 其它名称:497-5040
IDT71V432S6PF8
功能描述:IC SRAM 1MBIT 6NS 100TQFP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:576 系列:- 格式 - 存储器:闪存 存储器类型:闪存 - NAND 存储容量:512M（64M x 8） 速度:- 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 其它名称:497-5040
IDT71V432S6PFG
功能描述:IC SRAM 1MBIT 6NS 100TQFP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:72 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 同步 存储容量:4.5M（256K x 18） 速度:133MHz 接口:并联 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 封装/外壳:100-LQFP 供应商设备封装:100-TQFP（14x20） 包装:托盘
IDT71V432S6PFG8
功能描述:IC SRAM 1MBIT 6NS 100TQFP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:72 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 同步 存储容量:4.5M（256K x 18） 速度:133MHz 接口:并联 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 封装/外壳:100-LQFP 供应商设备封装:100-TQFP（14x20） 包装:托盘
IDT71V432S6PFGI
制造商:Integrated Device Technology Inc 功能描述:IC SRAM 1MBIT 6NS 100TQFP
IDT71V432S6PFGI8
制造商:Integrated Device Technology Inc 功能描述:IC SRAM 1MBIT 6NS 100TQFP
IDT71V432S6PFI
功能描述:IC SRAM 1MBIT 6NS 100TQFP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:576 系列:- 格式 - 存储器:闪存 存储器类型:闪存 - NAND 存储容量:512M（64M x 8） 速度:- 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 其它名称:497-5040