- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376410 > SN54LS191J (MOTOROLA INC) PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS PDF資料下載
參數(shù)資料
| 型號(hào)： | SN54LS191J |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS |
| 中文描述： | LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16 |
| 封裝： | CERAMIC, DIP-16 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 310K |
| 代理商： | SN54LS191J |
5-341
FAST AND LS TTL DATA
PRESETTABLE BCD/DECADE
UP/DOWN COUNTERS
PRESETTABLE 4-BIT BINARY
UP/DOWN COUNTERS
The SN54/74LS190 is a synchronous UP/DOWN BCD Decade (8421)
Counter and the SN54/74LS191 is a synchronous UP/DOWN Modulo-16
Binary Counter. State changes of the counters are synchronous with the
LOW-to-HIGH transition of the Clock Pulse input.
An asynchronous Parallel Load (PL) input overrides counting and loads the
data present on the Pn inputs into the flip-flops, which makes it possible to use
the circuits as programmable counters. A Count Enable (CE) input serves as
the carry/borrow input in multi-stage counters. An Up/Down Count Control
(U/D) input determines whether a circuit counts up or down. A Terminal Count
(TC) output and a Ripple Clock (RC) output provide overflow/underflow
indication and make possible a variety of methods for generating
carry/borrow signals in multistage counter applications.
Low Power . . . 90 mW Typical Dissipation
High Speed . . . 25 MHz Typical Count Frequency
Synchronous Counting
Asynchronous Parallel Load
Individual Preset Inputs
Count Enable and Up/Down Control Inputs
Cascadable
Input Clamp Diodes Limit High Speed Termination Effects
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
CONNECTION DIAGRAM DIP
(TOP VIEW)
PIN NAMES
LOADING
(Note a)
HIGH
LOW
CE
CP
U/D
PL
Pn
Qn
RC
TC
NOTES:
a. 1 TTL Unit Load (U.L.) = 40
μ
A HIGH/1.6 mA LOW.
b. The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
b.
Temperature Ranges.
Count Enable (Active LOW) Input
Clock Pulse (Active HIGH going edge) Input
Up/Down Count Control Input
Parallel Load Control (Active LOW) Input
Parallel Data Inputs
Flip-Flop Outputs (Note b)
Ripple Clock Output (Note b)
Terminal Count Output (Note b)
1.5 U.L.
0.5 U.L.
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
10 U.L.
10 U.L.
0.7 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
5 (2.5) U.L.
5 (2.5) U.L.
SN54/74LS190
SN54/74LS191
PRESETTABLE BCD/DECADE
UP/DOWN COUNTERS
PRESETTABLE 4-BIT BINARY
UP/DOWN COUNTERS
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS190D | PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS |
| SN74LS190N | axial lead glass packaged PIN diodes |
| SN74LS191D | Silicon Bipolar Darlington Amplifier |
| SN74LS191N | PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS |
| SN54LS195J | UNIVERSAL 4-BIT SHIFT REGISTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN54LS193J | 制造商:Texas Instruments 功能描述:Counter Single 4-Bit Binary UP/Down 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:SYNC UP/DOWN BINARY COUNTER 制造商:Texas Instruments 功能描述:COUNTER SGL 4BIT BINARY UP/DOWN 16CDIP - Rail/Tube |
| SN54LS194AJ | 制造商:Texas Instruments 功能描述:Shift Register Single 4-Bit Serial/Parallel to Parallel 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:SHIFT REGISTER SGL 4BIT SERL/PARALLEL TO PARALLEL 16CDIP - Rail/Tube |
| SN54LS194AW | 制造商:Texas Instruments 功能描述: |
| SN54LS195AJ | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:4-BIT SHIFT REGISTER - Rail/Tube |
| SN54LS197J | 制造商:Texas Instruments 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。