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參數資料
| 型號： | KK74HC193AN |
| 廠商： | KODENSHI CORP. |
| 英文描述： | Replacement for Texas Instruments part number SN74LS42N. Buy from authorized manufacturer Rochester Electronics. |
| 中文描述： | 可預置4位二進制加/減計數器高性能硅柵CMOS |
| 文件頁數： | 1/8頁 |
| 文件大小： | 434K |
| 代理商： | KK74HC193AN |
TECHNICAL DATA
K K
74HC193A
Presettable 4-Bit Binary UP/DOWN Counter
High-Performance Silicon-Gate CMOS
ORDERING INFORMATION
KK
74HC193AN Plastic
KK
74HC193AD SOIC
T
A
= -55
°
to 125
°
C for all packages
PIN ASSIGNMENT
The
KK
74HC193A is identical in pinout to the LS/ALS193. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The counter has two separate clock inputs, a Count Up Clock and
Count Down Clock inputs. The direction of counting is determined by
which input is clocked. The outputs change state synchronous with the
LOW-to-HIGH transitions on the clock inputs. This counter may be
preset by entering the desired data on the P0, P1, P2, P3 input. When the
Parallel Load input is taken low the data is loaded independently of either
clock input. This feature allows the counters to be used as devide-by-n by
modifying the count lenght with the preset inputs. In addition the counter
can also be cleared. This is accomplished by inputting a high on the
Master Reset input. All 4 internal stages are set to low independently of
either clock input.Both a Terminal Count Down (TC
D
) and Terminal
Count Up (TC
U
) Outputs are provided to enable cascading of both up and
down counting functions. The TC
D
output produces a negative going
pulse when the counter underflows and TC
U
outputs a pulse when the
counter overflows. The counter can be cascaded by connecting the TC
U
and TC
D
outputs of one device to the Count Up Clock and Count Down
Clock inputs, respectively, of the next device.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0
μ
A
High Noise Immunity Characteristic of CMOS Devices
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
1
相關PDF資料 |
PDF描述 |
|---|---|
| KK74HC20A | Replacement for Texas Instruments part number 54AC11032/BEA. Buy from authorized manufacturer Rochester Electronics. |
| KK74HC20AD | Replacement for Texas Instruments part number 54AC11008/B2A. Buy from authorized manufacturer Rochester Electronics. |
| KK74HC20AN | Replacement for Texas Instruments part number 54AC11008/BEA. Buy from authorized manufacturer Rochester Electronics. |
| KK74HC21A | Replacement for Texas Instruments part number 54ACT11374/B3A. Buy from authorized manufacturer Rochester Electronics. |
| KK74HC21AD | Replacement for Texas Instruments part number 54ACT11374/BLA. Buy from authorized manufacturer Rochester Electronics. |
相關代理商/技術參數 |
參數描述 |
|---|---|
| KK74HC20A | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input NAND Gate High-Performance Silicon-Gate CMOS |
| KK74HC20AD | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input NAND Gate High-Performance Silicon-Gate CMOS |
| KK74HC20AN | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input NAND Gate High-Performance Silicon-Gate CMOS |
| KK74HC21A | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input AND Gate |
| KK74HC21AD | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input AND Gate |
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