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74HC40103
General description
The 74HC40103 is a high-speed Si-gate CMOS device and are pin compatible with the 40103 of the 4000B series. The 74HC40103 is specified in compliance with JEDEC standard no. 7A.
The 74HC40103 consists of an 8-bit synchronous down counter with a single output which is active when the internal count is zero. The 74HC40103 contains a single 8-bit binary counter and has control inputs for enabling or disabling the clock (CP), for clearing the counter to its maximum count and for presetting the counter either synchronously or asynchronously. All control inputs and the terminal count output (TC) are active-LOW logic.
In normal operation, the counter is decremented by one count on each positive-going transition of the clock (CP). Counting is inhibited when the terminal enable input (TE) is HIGH. The terminal count output (TC) goes LOW when the count reaches zero if TE is LOW, and remains LOW for one full clock period.
When the synchronous preset enable input (PE) is LOW, data at the jam input (P0 to P7) is clocked into the counter on the next positive-going clock transition regardless of the state of TE. When the asynchronous preset enable input (PL) is LOW, data at the jam input (P0 to P7) is asynchronously forced into the counter regardless of the state of PE, TE, or CP. The jam inputs (P0 to P7) represent a single 8-bit binary word.
When the master reset input (MR) is LOW, the counter is asynchronously cleared to its maximum count (decimal 255) regardless of the state of any other input.
If all control inputs except TE are HIGH at the time of zero count, the counters will jump to the maximum count, giving a counting sequence of 256 clock pulses long.
The 74HC40103 may be cascaded using the TE input and the TC output, in either a synchronous or ripple mode.
Features
- Cascadable
- Synchronous or asynchronous preset
- Low-power dissipation
- Complies with JEDEC standard no. 7A
- ESD protection:
- HBM EIA/JESD22-A114-B exceeds 2000 V
- MM EIA/JESD22-A115-A exceeds 200 V.
- Multiple package options
- Specified from -40 Cel to +80Cel and from -40 Cel to +125 Cel.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74HC40103D | 74HC40103D | 9337 147 30652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | 74HC40103D
| week 4, 2004 |
| 74HC40103D | 74HC40103D-T | 9337 147 30653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HC40103D
| week 4, 2004 |
| 74HC40103DB | 74HC40103DB | 9351 893 40112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74HC40103DB
| week 17, 2005 |
| 74HC40103DB | 74HC40103DB-T | 9351 893 40118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HC40103DB
| week 17, 2005 |
| 74HC40103N | 74HC40103N | 9336 696 40652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | 74HC40103N
| Always Pb-free |
| 74HC40103PW | 74HC40103PW | 9351 896 20112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | 74HC40103PW
| week 10, 2005 |
| 74HC40103PW | 74HC40103PW-T | 9351 896 20118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HC40103PW
| week 10, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74HC40103D | 9337 147 30652 | 0.4600 | NA | ARROW ELECTRONICS | 50 | 9/5/2008 | Buy online | Order samples |
| NA | DIGI-KEY CORPORATION | 2,223 | 9/6/2008 | Buy online | ||||
| EU | FARNELL | 1,000 | 9/5/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 4,470 | 9/5/2008 | Buy online | ||||
| NA | NEWARK | 1,000 | 9/5/2008 | Buy online | ||||
| 74HC40103D | 9337 147 30653 | 0.4600 | NA | MOUSER ELECTRONICS | 2,491 | 9/5/2008 | Buy online | Order samples |
| 74HC40103DB | 9351 893 40112 | 0.4900 | NA | DIGI-KEY CORPORATION | 101 | 9/6/2008 | Buy online | not available |
| 74HC40103DB | 9351 893 40118 | 0.4900 | Order samples | |||||
| 74HC40103N | 9336 696 40652 | 0.5400 | NA | ARROW ELECTRONICS | 17 | 9/5/2008 | Buy online | Order samples |
| NA | DIGI-KEY CORPORATION | 9 | 9/6/2008 | Buy online | ||||
| EU | FARNELL | 1,096 | 9/5/2008 | Buy online | ||||
| NA | MOUSER ELECTRONICS | 952 | 9/5/2008 | Buy online | ||||
| NA | NEWARK | 1,096 | 9/5/2008 | Buy online | ||||
| 74HC40103PW | 9351 896 20112 | 0.4600 | NA | DIGI-KEY CORPORATION | 193 | 9/6/2008 | Buy online | Order samples |
| 74HC40103PW | 9351 896 20118 | 0.4600 | Order samples |
Applications
- Divide-by-n counters
- Programmable timers
- Interrupt timers
- Cycle/program counters.
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74HC40103D | SOT109-1
(SO16) | 8-Bit Synchronous Binary Down Counter | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
| 74HC40103DB | SOT338-1
(SSOP16) | 8-Bit Synchronous Binary Down Counter | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
| 74HC40103N | SOT38-4
(DIP16) | 8-Bit Synchronous Binary Down Counter | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
| 74HC40103PW | SOT403-1
(TSSOP16) | 8-Bit Synchronous Binary Down Counter | 15@5V | 5 Volts + | 16 | Low Power or Battery Applications | CMOS | Low |
Similar products
74HC40103 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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