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HD74HC4515

Hitachi Semiconductor
Part Number HD74HC4515
Manufacturer Hitachi Semiconductor
Description 4-bit Latch/4-to-16-line Decoder
Published Mar 23, 2005
Detailed Description HD74HC4515 4-bit Latch/4-to-16-line Decoder Description This device presents 4-to-16 line decoder with latched inputs. ...
Datasheet PDF File HD74HC4515 PDF File

HD74HC4515
HD74HC4515

Overview
HD74HC4515 4-bit Latch/4-to-16-line Decoder Description This device presents 4-to-16 line decoder with latched inputs.
The HD74HC4515 presents a low level at the selected output.
This device consists of four storage latches with common strobe and inhibit (G) inputs.
When a low signal is applied to the strobe input, the input data is stored, decoded, and presented to the output.
When inhibit is high, all HD74HC4515 outputs are a high logic level.
Features • • • • • High Speed Operation: tpd (Data to S) = 20 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) HD74HC4515 Function Table (Strobe = High) Data Inputs Inhibit L L L L L L L L L L L L L L L L H D L L L L L L L L H H H H H H H H X C L L L L H H H H L L L L H H H H X B L L H H L L H H L L H H L L H H X A L H L H L H L H L H L H L H L H X Select Outputs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 All output “H” 2 HD74HC4515 Pin Arrangement Strobe Data 1 Data 2 S7 S6 S5 S4 S3 S1 1 2 3 4 B A D C 5 6 7 8 9 4 to 16 Decoder Latch 24 23 22 21 20 19 18 17 16 15 14 13 (Top view) VCC Inhibit Data 4 Data 3 S10 S11 S8 S9 S14 S15 S12 S13 S2 10 S0 11 GND 12 3 HD74HC4515 Logic Diagram S0 S1 S2 D1 IN S Q Q S3 S4 S5 D2 S6 S7 S8 D3 S9 S10 D4 S11 S12 S13 Inhibit S14 S15 Strobe 4 HD74HC4515 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = –40 to +85°C Max — — — 0.
5 1.
35 1.
8 — — — — — 0.
1 0.
1 0.
1 0.
33 0.
33 ±1.
0 40 µA µA I OL = 4 mA I OL = 5.
2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH = –4 mA I OH = –5.
2 mA Vin = VIH or VIL I OL = 20 µA V Vin = VIH or VIL I OH = –20 µA V Unit V Test Conditions VCC (V) Min Typ Max Min 2.
0 4.
5 6.
0 1.
5 — 3.
15 — 4.
2 — — — — — — — — — — 0.
5 1.
5 3.
15 4.
2 — VIL 2.
0 4.
5 6.
0 1.
35 — 1.
8 — 1.
9 4.
4 5.
9 4.
13 5.
63 — — — Output voltage VOH 2.
0 4.
5 6.
0 4.
5 6.
0 1.
9 2.
0 — 4.
4 4.
5 — 5.
9 6.
0 — 4.
18 — 5.
68 ...


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