74ACT11593
器件描述：8-BIT BINARY COUNTER WITH PARALLEL-INPUT REGISTERS AND 3-STATE OUTPUTS
器件厂商：TI [Texas Instruments]
厂商主页：http://www.ti.com/
文件大小：122.73KB，共8页
Sponsor by e络盟器件资料摘要：
74ACT11593
8-BIT BINARY COUNTER
WITH PARALLEL-INPUT REGISTERS AND 3-STATE OUTPUTS
SCAS203 – JUNE 1992 – REVISED APRIL 1993
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1993, Texas Instruments Incorporated
2–1
• Inputs Are TTL-Voltage Compatible
• Parallel Register Inputs/Binary
Counter/3-State Outputs
• Counter Has Direct Overriding Load and
Clear
• Flow-Through Architecture Optimizes
PCB Layout
• Center-Pin V
CC
and GND Configurations
Minimize High-Speed Switching Noise
• EPIC (Enhanced-Performance Implanted
CMOS) 1-m m Process
• 500-mA Typical Latch-Up Immunity at 125°C
• Package Options Include Plastic
Small-Outline Packages and Standard
Plastic 300-mil DIPs
description
The 74ACT11593 contains eight multiplexed parallel I/Os with 3-state output capability and an 8-bit storage
register that feeds an 8-bit binary counter. Both the register and the counter have individual positive-edge
triggered clocks.
The function tables show the operation of the counter clock-enable (CCKEN, CCKEN) and output-enable
(OE, OE) inputs.
The counter input has direct load and clear functions. A low-going RCO pulse is obtained when the counter
reaches the hex word FF.
Expansion is easily accomplished for two stages by connecting RCO of the first stage to CCKEN of the second
stage. Cascading for larger count chains is accomplished by connecting RCO of each stage to CCK of the
following stage.
The 74ACT11593 is characterized for operation from –40°C to 85°C.
Function Tables
COUNTER CLOCK ENABLE OUTPUT ENABLE
INPUTS OUTPUTS INPUTS OUTPUTS
CCKEN CCKEN
A/Q
A
THRU H/Q
H
OE OE
A/Q
A
THRU H/Q
H
L L Disable L L Input mode
L H Disable L H Input mode
H L Enable H L Output mode
H H Disable H H Input mode
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
EPIC is a trademark of Texas Instruments Incorporated.
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A/Q
A
B/Q
B
C/Q
C
D/Q
D
GND
GND
GND
GND
E/Q
E
F/Q
F
G/Q
G
H/Q
H
CCK
CCLR
CCKEN
CCKEN
CLOAD
V
CC
V
CC
OE
OE
RCK
RCK
RCO
DW OR NT PACKAGE
(TOP VIEW)
8-BIT BINARY COUNTER
WITH PARALLEL-INPUT REGISTERS AND 3-STATE OUTPUTS
SCAS203 – JUNE 1992 – REVISED APRIL 1993
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1993, Texas Instruments Incorporated
2–1
• Inputs Are TTL-Voltage Compatible
• Parallel Register Inputs/Binary
Counter/3-State Outputs
• Counter Has Direct Overriding Load and
Clear
• Flow-Through Architecture Optimizes
PCB Layout
• Center-Pin V
CC
and GND Configurations
Minimize High-Speed Switching Noise
• EPIC (Enhanced-Performance Implanted
CMOS) 1-m m Process
• 500-mA Typical Latch-Up Immunity at 125°C
• Package Options Include Plastic
Small-Outline Packages and Standard
Plastic 300-mil DIPs
description
The 74ACT11593 contains eight multiplexed parallel I/Os with 3-state output capability and an 8-bit storage
register that feeds an 8-bit binary counter. Both the register and the counter have individual positive-edge
triggered clocks.
The function tables show the operation of the counter clock-enable (CCKEN, CCKEN) and output-enable
(OE, OE) inputs.
The counter input has direct load and clear functions. A low-going RCO pulse is obtained when the counter
reaches the hex word FF.
Expansion is easily accomplished for two stages by connecting RCO of the first stage to CCKEN of the second
stage. Cascading for larger count chains is accomplished by connecting RCO of each stage to CCK of the
following stage.
The 74ACT11593 is characterized for operation from –40°C to 85°C.
Function Tables
COUNTER CLOCK ENABLE OUTPUT ENABLE
INPUTS OUTPUTS INPUTS OUTPUTS
CCKEN CCKEN
A/Q
A
THRU H/Q
H
OE OE
A/Q
A
THRU H/Q
H
L L Disable L L Input mode
L H Disable L H Input mode
H L Enable H L Output mode
H H Disable H H Input mode
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
EPIC is a trademark of Texas Instruments Incorporated.
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
A/Q
A
B/Q
B
C/Q
C
D/Q
D
GND
GND
GND
GND
E/Q
E
F/Q
F
G/Q
G
H/Q
H
CCK
CCLR
CCKEN
CCKEN
CLOAD
V
CC
V
CC
OE
OE
RCK
RCK
RCO
DW OR NT PACKAGE
(TOP VIEW)