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SN54LS90 |
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| Part Number | SN54LS90 |
| Manufacturer | Motorola Inc |
| Description | The LS90, LS92, and LS93 are 4-bit ripple type Decade, Divide-By-Twelve, and Binary Counters respectively. Each device consists of four master/slave flip-flops which are internally connected to provid... |
| Features |
ctive LOW going edge) Input to ÷5 Section (LS90), ÷6 Section (LS92)
Clock (Active LOW going edge) Input to ÷8 Section (LS93)
Master Reset (Clear) Inputs
Master Set (Preset-9, LS90) Inputs Output from ÷2 Section (Notes b & c) Outputs from ÷5 (LS90), ÷6 (LS92), ÷8 (LS93) Sections (Note b)
0.5 U.L.
1.5 U.L.
0.5 U.L.
2.0 U.L.
0.5 U.L.
1.0 U.L.
0.5 U.L. 0.5 U.L. 10 U.L. 10 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 µA 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)
b. Temperature Ran... |
| Document |
 SN54LS90 Data Sheet
PDF 80.34KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | SN54LS90 |
Texas Instruments |
DIVIDE-BY-TWELVE AND BINARY COUNTERS |
|
| 2 | SN54LS91 |
Texas Instruments |
8-BIT SHIFT REGISTER |
|
| 3 | SN54LS92 |
Motorola |
4-BIT BINARY COUNTER |
|
| 4 | SN54LS92 |
Texas Instruments |
DIVIDE-BY-TWELVE AND BINARY COUNTERS |
|
| 5 | SN54LS93 |
Motorola |
4-BIT BINARY COUNTER |
|