CD74HCT40105
- Independent Asynchronous Inputs and Outputs
- Expandable in Either Direction
- Reset Capability
- Status Indicators on Inputs and Outputs
- Three-State Outputs
- Shift-Out Independent of Three-State Control
- Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
- Wide Operating Temperature Range . . . -55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
- Applications
- Bit-Rate Smoothing
- CPU/Terminal Buffering
- Data Communications
- Peripheral Buffering
- Line Printer Input Buffers
- Auto-Dialers
- CRT Buffer Memories
- Radar Data Acquisition
The HC40105 and HCT40105 are high-speed silicon-gate CMOS devices that are compatible, except for "shift-out" circuitry, with the CD40105B. They are low-power first-in-out (FIFO) "elastic" storage registers that can store 16 four-bit words. The 40105 is capable of handling input and output data at different shifting rates. This feature makes particularly useful as a buffer between asynchronous systems.
Each work position in the register is clocked by a control flip-flop, which stores a marker bit. A "1" signifies that the positions data is filled and a "0" denotes a vacancy in that position. The control flip-flop detects the state of the preceding flip-flop and communicates its own status to the succeeding flip-flop. When a control flip-flop is in the "0" state and sees a "1" in the preceeding flip-flop, it generates a clock pulse that transfers data from the preceding four data latches into its own four data latches and resets the preceding flip-flop to "0". The first and last control flip-flops have buffered outputs. Since all empty locations "bubble" automatically to the input end, and all valid data ripple through to the output end, the status of the first control flip-flop (DATA-IN READY) indicates if the FIFO is full, and the status of the last flip-flop (DATA-OUT READY) indicates if the FIFO contains data. As the earliest data are removed from the bottom of the data stack (the output end), all data entered later will automatically propagate (ripple) toward the output.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | CD54HC40105, CD74HC40105, CD54HCT40105, CD74HCT40105 datasheet (Rev. C) | 2003年 10月 16日 | |
Application note | Implications of Slow or Floating CMOS Inputs (Rev. E) | 2021年 7月 26日 | ||
Selection guide | Logic Guide (Rev. AB) | 2017年 6月 12日 | ||
Application note | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 2015年 12月 2日 | ||
User guide | LOGIC Pocket Data Book (Rev. B) | 2007年 1月 16日 | ||
Application note | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 2004年 7月 8日 | ||
User guide | Signal Switch Data Book (Rev. A) | 2003年 11月 14日 | ||
Application note | TI IBIS File Creation, Validation, and Distribution Processes | 2002年 8月 29日 | ||
Application note | CMOS Power Consumption and CPD Calculation (Rev. B) | 1997年 6月 1日 | ||
Application note | Designing With Logic (Rev. C) | 1997年 6月 1日 | ||
Application note | SN54/74HCT CMOS Logic Family Applications and Restrictions | 1996年 5月 1日 | ||
Application note | Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc | 1996年 4月 1日 |
設計與開發
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14-24-LOGIC-EVM — 適用於 14 針腳至 24 針腳 D、DB、DGV、DW、DYY、NS 和 PW 封裝的邏輯產品通用評估模組
14-24-LOGIC-EVM 評估模組 (EVM) 設計用於支援任何 14 針腳至 24 針腳 D、DW、DB、NS、PW、DYY 或 DGV 封裝的任何邏輯裝置。
封裝 | 引腳 | 下載 |
---|---|---|
PDIP (N) | 16 | 檢視選項 |
SOIC (D) | 16 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點