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参数资料
| 型号： | SN74LS293 |
| 厂商： | Motorola, Inc. |
| 英文描述： | 3V LNA, 4.5mA Low Current, 0.5-4GHz, SOT363(SC-70) |
| 中文描述： | 十进制计数器，4位二进制计数器 |
| 文件页数： | 1/7页 |
| 文件大小： | 205K |
| 代理商： | SN74LS293 |
5-466
FAST AND LS TTL DATA
DECADE COUNTER;
4-BIT BINARY COUNTER
The SN54/74LS290 and SN54/74LS293 are high-speed 4-bit ripple type
counters partitioned into two sections. Each counter has a divide-by-two sec-
tion and either a divide-by-five (LS290) or divide-by-eight (LS293) section
which are triggered by a HIGH-to-LOW transition on the clock inputs. Each
section can be used separately or tied together (Q to CP)to form BCD,
Bi-quinary, or Modulo-16 counters. Both of the counters have a 2-input gated
Master Reset (Clear), and the LS290 also has a 2-input gated Master Set
(Preset 9).
Corner Power Pin Versions of the LS90 and LS93
Low Power Consumption . . . Typically 45 mW
High Count Rates . . . Typically 42 MHz
Choice of Counting Modes . . . BCD, Bi-Quinary, Binary
Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP
(TOP VIEW)
LS290
LS293
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
PIN NAMES
LOADING
(Note a)
HIGH
LOW
CP0
CP1
CP1
MR1, MR2
MS1, MS2
Q0
Q1, Q2, Q3
Clock (Active LOW going edge) Input to
÷
2 Section.
Clock (Active LOW going edge) Input to
÷
5 Section (LS290).
Clock (Active LOW going edge) Input to
÷
8 Section (LS293).
Master Reset (Clear) Inputs
Master Set (Preset-9, LS290) Inputs
Output from
÷
2 Section (Notes b & c)
Outputs from
÷
5 &
÷
8 Sections (Note b)
0.05 U.L.
0.05 U.L.
0.05 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
10 U.L.
1.5 U.L.
2.0 U.L.
1.0 U.L.
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
5 (2.5) U.L.
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) Temperature Ranges.
c) The Q0 Outputs are guaranteed to drive the full fan-out plus the CP1 Input of the device.
SN54/74LS290
SN54/74LS293
DECADE COUNTER;
4-BIT BINARY COUNTER
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
J SUFFIX
CERAMIC
CASE 632-08
N SUFFIX
PLASTIC
CASE 646-06
14
1
14
1
14
1
D SUFFIX
SOIC
CASE 751A-02
相关PDF资料 |
PDF描述 |
|---|---|
| SN54LS293J | DECADE COUNTER; 4-BIT BINARY COUNTER |
| SN74LS293D | DECADE COUNTER; 4-BIT BINARY COUNTER |
| SN74LS293N | DECADE COUNTER; 4-BIT BINARY COUNTER |
| SN74LS298D | QUAD 2-INPUT MULTIPLEXER WITH STORAGE |
| SN74LS298N | >6V Fixed Gain, 10 dBm General Purpose Amplifier |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS293D | 功能描述:计数器 IC 4-BIT BINARY COUNTERS RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| SN74LS293DE4 | 功能描述:计数器 IC 4-BIT BINARY COUNTERS RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| SN74LS293DG4 | 功能描述:计数器 IC 4B Binary Counter RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| SN74LS293DR | 功能描述:计数器移位寄存器 4-BIT BINARY COUNTERS RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
| SN74LS293DRE4 | 功能描述:计数器 IC 4-BIT BINARY COUNTERS RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
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