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74HC/HCT40105
General description
The 74HC/HCT40105 are high-speed Si-gate CMOS devices and are pin compatible with the "40105" of the "4000B" series. They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT40105 are first-in/first-out (FIFO) "elastic" storage registers that can store sixteen 4-bit words. The "40105" is capable of handling input and output data at different shifting rates. This feature makes it particularly useful as a buffer between asynchronous systems. Each word position in the register is clocked by a control flip-flop, which stores a marker bit. A "1" signifies that the position?s 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 preceding 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 ripples through to the output end, the status of the first control flip-flop (data-in ready output - DIR) indicates if the FIFO is full, and the status of the last flip-flop (data-out ready output - DOR) indicates if the FIFO contains data. As the earliest data is removed from the bottom of the data stack (output end), all data entered later will automatically ripple toward the output.
Features
- Independent asynchronous inputs and outputs
- Expandable in either direction
- Reset capability
- Status indicators on inputs and outputs
- 3-state outputs
- Output capability: standard
- ICC category: MSI
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74HC40105D | 74HC40105D | 9337 147 40652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | 74HC40105D
| week 30, 2004 |
| 74HC40105D | 74HC40105D-T | 9337 147 40653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HC40105D
| week 30, 2004 |
| 74HC40105DB | 74HC40105DB | 9351 893 50112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74HC40105DB
| week 17, 2005 |
| 74HC40105DB | 74HC40105DB-T | 9351 893 50118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HC40105DB
| week 17, 2005 |
| 74HC40105N | 74HC40105N | 9336 696 60652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | 74HC40105N
| Always Pb-free |
| 74HC40105PW | 74HC40105PW | 9351 890 70112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | 74HC40105PW
| week 10, 2005 |
| 74HC40105PW | 74HC40105PW-T | 9351 890 70118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HC40105PW
| week 10, 2005 |
| 74HCT40105D | 74HCT40105D | 9337 152 20112 | Volume production | SOT109-1
(SO16) | Bulk Pack | Standard Marking | 74HCT40105D
| week 4, 2004 |
| 74HCT40105D | 74HCT40105D-T | 9337 152 20118 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13" | Standard Marking | 74HCT40105D
| week 4, 2004 |
| 74HCT40105DB | 74HCT40105DB | 9351 899 60112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74HCT40105DB
| week 17, 2005 |
| 74HCT40105DB | 74HCT40105DB-T | 9351 899 60118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HCT40105DB
| week 17, 2005 |
| 74HCT40105N | 74HCT40105N | 9336 702 90112 | Volume production | SOT38-4
(DIP16) | Bulk Pack | Standard Marking | 74HCT40105N
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| 74HC40105D | 9337 147 40652 | 0.9800 | NA | DIGI-KEY CORPORATION | 3,762 | 1/6/2009 | Buy online | not available | |
| 74HC40105D | 9337 147 40653 | 0.9800 | NA | MOUSER ELECTRONICS | 2,500 | 1/7/2009 | Buy online | Order samples | |
| 74HC40105DB | 9351 893 50112 | 0.9800 | NA | DIGI-KEY CORPORATION | 992 | 1/6/2009 | Buy online | not available | |
| 74HC40105DB | 9351 893 50118 | 0.9800 | Order samples | ||||||
| 74HC40105N | 9336 696 60652 | 0.8900 | NA | ARROW ELECTRONICS | 324 | 1/6/2009 | Buy online | Order samples | |
| NA | AVNET ELECTRONICS MARKETING | 941 | 1/7/2009 | Buy online | |||||
| 74HC40105PW | 9351 890 70112 | 0.9800 | NA | DIGI-KEY CORPORATION | 2,035 | 1/6/2009 | Buy online | not available | |
| 74HC40105PW | 9351 890 70118 | 0.9800 | Order samples | ||||||
| 74HCT40105D | 9337 152 20112 | 0.5500 | NA | DIGI-KEY CORPORATION | 570 | 1/6/2009 | Buy online | not available | |
| 74HCT40105D | 9337 152 20118 | 0.5500 | Order samples | ||||||
| 74HCT40105DB | 9351 899 60112 | 0.7600 | NA | DIGI-KEY CORPORATION | 332 | 1/6/2009 | Buy online | not available | |
| 74HCT40105DB | 9351 899 60118 | 0.7600 | Order samples | ||||||
| 74HCT40105N | 9336 702 90112 | 0.7600 | NA | AVNET ELECTRONICS MARKETING | 195 | 1/7/2009 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 698 | 1/6/2009 | Buy online |
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74HC40105D | SOT109-1
(SO16) | 4-Bit x 16-Word FIFO Register | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
| 74HC40105DB | SOT338-1
(SSOP16) | 4-Bit x 16-Word FIFO Register | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
| 74HC40105N | SOT38-4
(DIP16) | 4-Bit x 16-Word FIFO Register | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
| 74HC40105PW | SOT403-1
(TSSOP16) | 4-Bit x 16-Word FIFO Register | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
| 74HCT40105D | SOT109-1
(SO16) | 4-Bit x 16-Word FIFO Register; TTL Enabled | 18 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4 mA |
| 74HCT40105DB | SOT338-1
(SSOP16) | 4-Bit x 16-Word FIFO Register; TTL Enabled | 18 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4 mA |
| 74HCT40105N | SOT38-4
(DIP16) | 4-Bit x 16-Word FIFO Register; TTL Enabled | 18 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4 mA |
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74HC/HCT40105
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