参数资料
型号: IDT74ALVCH16260PAG
厂商: IDT, Integrated Device Technology Inc
文件页数: 3/7页
文件大小: 0K
描述: IC LATCH 12-24BIT 3.3V 56-TSSOP
标准包装: 34
系列: 74ALVCH
逻辑类型: D 型透明锁存器
电路: 12:24
输出类型: 三态
电源电压: 2.3 V ~ 3.6 V
独立电路: 1
延迟时间 - 传输: 1ns
输出电流高,低: 24mA,24mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 56-TFSOP(0.240",6.10mm 宽)
供应商设备封装: 56-TSSOP
包装: 管件
其它名称: 74ALVCH16260PAG
INDUSTRIALTEMPERATURERANGE
IDT74ALVCH16260
3.3V CMOS 12-BIT TO 24-BIT MULTIPLEXED D-TYPE LATCH
3
NOTES:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
2. Output level before the indicated steady-state input conditions were established.
Inputs
Outputs
Ax
LEA1B
LEA2B
OE1B
OE2B
1Bx
2Bx
HH
H
L
H
L
H
L
LLL
H
LLL
H
2B
0
(2)
L
H
LLL
L
2B
0
(2)
HL
H
L
1B
0
(2)
H
LL
H
L
1B
0
(2)
L
X
L
LLL
1B
0
(2)
2B
0
(2)
XX
X
H
Z
X
L
H
Active
Z
X
H
L
Z
Active
X
L
Active
A-TO-B (
OEA = H)
FUNCTION TABLES (CONTINUED)(1)
NOTE:
1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.
Pin Names
I/O
Description
Ax(1:12)
I/O
Bidirectional Data Port A. Usually connected to the CPU's address/data bus.
(1)
1
Bx(1:12)
I/O
Bidirectional Data Port 1B. Usually connected to the even path or even bank of memory.
(1)
2
Bx(1:12)
I/O
Bidirectional Data Port 2B. Usually connected to the odd path or odd bank of memory.
(1)
LEA1B
I
Latch Enable Input for A-1B Latch. The latch is open when LEA1B is HIGH. Data from the A-port is latched on the HIGH to LOW
transition of LEA1B.
LEA2B
I
Latch Enable Input for A-2B Latch. The latch is open when LEA2B is HIGH. Data from the A-port is latched on the HIGH to LOW
transition of LEA2B.
LE1B
I
Latch Enable Input for 1B-A Latch. The latch is open when LE1B is HIGH. Data from the A-port is latched on the HIGH to LOW
transition of LE1B.
LE2B
I
Latch Enable Input for 2B-A Latch. The latch is open when LE2B is HIGH. Data from the A-port is latched on the HIGH to LOW
transition of LE2B.
SEL
I
1B or 2B Port Selection. When HIGH, SEL enables data transfer from 1B Port to A Port. When LOW, SEL enables data transfer from
2B Port to A Port.
OEA
I
Output Enable for A Port (Active LOW)
OE1B
I
Output Enable for 1B Port (Active LOW)
OE2B
I
Output Enable for 2B Port (Active LOW)
PIN DESCRIPTION
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