Datasheet MM74C925, MM74C926, MM74C927, MM74C928 (Fairchild) - 2
| 制造商 | Fairchild |
| 描述 | 4-Digit Counters with Multiplexed 7-Segment Output Drivers |
| 页数 / 页 | 9 / 2 — Connection Diagrams. Pin Assignments for DIP. 74C928 M. • M 7 2 9 C 74. • … |
| 文件格式/大小 | PDF / 112 Kb |
| 文件语言 | 英语 |
Connection Diagrams. Pin Assignments for DIP. 74C928 M. • M 7 2 9 C 74. • MM. C926 4 7. Top View. MM74C925
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Connection Diagrams Pin Assignments for DIP 74C928 M • M 7 2 9 C 74 • MM C926 4 7 Top View MM74C925 Top View MM74C926, MM74C927, MM74C928 • MM Functional Description
Reset — Asynchronous, active high Segment Output — Current sourcing with 40 mA @V = OUT Display Select — High, displays output of counter V − CC 1.6V (typ.) Also, sink capability = 2 Low, displays output of latch LTTL loads Latch Enable — High, flow through condition Digit Output — Current sourcing with 1 mA @V
MM74C925
OUT = Low, latch condition 1.75V. Also, sink capability = 2 LTTL loads Clock —Negative edge sensitive Carry-Out — 2 LTTL loads. See carry-out waveforms.
Logic Diagrams MM74C925
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Reset — Asynchronous, active high Segment Output — Current sourcing with 40 mA @V = OUT Display Select — High, displays output of counter V − CC 1.6V (typ.) Also, sink capability = 2 Low, displays output of latch LTTL loads Latch Enable — High, flow through condition Digit Output — Current sourcing with 1 mA @V
MM74C925
OUT = Low, latch condition 1.75V. Also, sink capability = 2 LTTL loads Clock —Negative edge sensitive Carry-Out — 2 LTTL loads. See carry-out waveforms.
Logic Diagrams MM74C925
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