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SN54-74LS90 数据手册 ( 数据表 ) |
| 零件编号 | 产品描述 (功能) | 生产厂家 |
| SN54-74LS90 | DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER |  ON Semiconductor  |
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The SN54/74LS90, SN54/74LS92 and SN54/74LS93 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two section and either a divide-by-five (LS90), divide-by-six (LS92) or divide-by-eight (LS93) 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, modulo-12, or modulo-16 counters. All of the counters have a 2-input gated Master Reset (Clear), and the LS90 also has a 2-input gated Master Set (Preset 9).
• Low Power Consumption . . . Typically 45 mW
• High Count Rates . . . Typically 42 MHz
• Choice of Counting Modes . . . BCD, Bi-Quinary, Divide-by-Twelve, Binary
• Input Clamp Diodes Limit High Speed Termination Effects
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与其他制造商的搜索 'SN54-74LS90'
| 零件编号 | 产品描述 (功能) | 生产厂家 | |
| 74LS90 | DECADE COUNTER / DIVIDE-BY-TWELVE COUNTER / 4-BIT BINARY COUNTER | 视图 | Motorola => Freescale |
| HD74HC160 | Synchronous Decade Counter (Direct Clear)/Synchronous 4-bit Binary Counter (Direct Clear)/Synchronous Decade Counter (Synchronous Clear)/Synchronous 4-bit Binary Counter (Synchronous Clear) | 视图 | Renesas Electronics |
| HD74HC160 | Synchronous Decade Counter (Direct Clear)/Synchronous 4-bit Binary Counter (Direct Clear)/Synchronous Decade Counter (Synchronous Clear)/Synchronous 4-bit Binary Counter (Synchronous Clear) | 视图 | Hitachi -> Renesas Electronics |
| SN74LS290 | DECADE COUNTER; 4-BIT BINARY COUNTER | 视图 | Motorola => Freescale |
| M54HC4520F1R | HC4520 DUAL 4 BIT BINARY COUNTER HC4518 DUAL DECADE COUNTER | 视图 | STMicroelectronics |
| HD74HC668 | Synchronous UP/Down Decade Counter Synchronous Up/Down 4-bit binary Counter | 视图 | Hitachi -> Renesas Electronics |
| HD74HC668 | Synchronous UP/Down Decade Counter Synchronous Up/Down 4-bit binary Counter | 视图 | Renesas Electronics |
| HEF4029B | Synchronous up/down counter, binary/decade counter | 视图 | Philips Electronics |
| SN54LSXXXJ | DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER | 视图 | Motorola => Freescale |
| M74HC192C1R | HC193 - SYNCHRONOUS UP/DOWN BINARY COUNTER HC192 - SYNCHRONOUS UP/DOWN DECADE COUNTER | 视图 | STMicroelectronics |
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