HD74HC4511 BCD-to-Seven Segment Latch/Decoder/Driver Description The HD74HC4511 provides the functions of a 4-bit storage latch, a BCD-to-seven-segment decoder, and an output driver. Lamp test (LT), blanking (BI), and latch enable (LE) inputs are used to test the display, to turn off or pulse-modulate the brightness of the display, and to store a BCD code, respectively. Features • • • • • High Speed Operation: tpd (A, B, C, D to a – g) = 31 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) HD74HC4511 Function Table Inputs Outputs LE BI LT D C B A a b c d e f g Display X X L X X X X H H H H H H H 8 X L H X X X X L L L L L L L Blank L H H L L L L H H H H H H H 0 L H H L L L H L H H L L L L 1 L H H L L H L H H L H H L H 2 L H H L L H H H H H H L L H 3 L H H L H L L L H H L L H H 4 L H H L H L H H L H H L H H 5 L H H L H H L L L H H H H H 6 L H H L H H H H H H L L L L 7 L H H H L L L H H H H H H H 8 L H H H L L H H H H L L H H 9 L H H H L H L L L L L L L L Blank L H H H L H H L L L L L L L Blank L H H H H L L L L L L L L L Blank L H H H H L H L L L L L L L Blank L H H H H H L L L L L L L L Blank L H H H H H H L L L L L L L Blank H X H H Note: 1. Depends upon the BCD code previously applied when LE = O a f g e d 2 b c X X X * 1 *1 HD74HC4511 Pin Arrangement B 1 C 2 C LT 3 BI 16 VCC B f 15 f LT g 14 g 4 BI a 13 a LE 5 LE b 12 b D 6 D c 11 c A 7 A d 10 d GND 8 e 9 e (Top view) 3 HD74HC4511 DC Characteristics Ta = –40 to +85°C Ta = 25°C Item Symbol VCC (V) Min Typ Max Min Max Unit Input voltage VIH 2.0 1.5 — — 1.5 — V 4.5 3.15 — — 3.15 — 6.0 4.2 — — 4.2 — 2.0 — — 0.5 — 0.5 4.5 — — 1.35 — 1.35 6.0 — — 1.8 — 1.8 2.0 1.9 2.0 — 1.9 — 4.5 4.4 4.5 — 4.4 — 6.0 5.9 6.0 — 5.9 — 4.5 4.18 — — 4.13 — I OH = –4 mA 6.0 5.68 — — 5.63 — I OH = –5.2 mA 2.0 — 0.0 0.1 — 0.1 4.5 — 0.0 0.1 — 0.1 6.0 — 0.0 0.1 — 0.1 4.5 — — 0.26 — 0.33 I OL = 4 mA 6.0 — — 0.26 — 0.33 I OL = 5.2 mA VIL Output voltage VOH VOL Test Conditions V V V Vin = VIH or VIL I OH = –20 µA Vin = VIH or VIL I OL = 20 µA Input current Iin 6.0 — — ±0.1 — ±1.0 µA Vin = VCC or GND Quiescent supply current I CC 6.0 — — 4.0 40 µA Vin = VCC or GND, Iout = 0 µA 4 — HD74HC4511 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = –40 to +85°C Ta = 25°C VCC (V) Min Typ Max Min Max Unit Test Conditions Propagation delay t PLH 2.0 — — 400 — 500 ns A, B, C or D to a – g time 4.5 — 31 80 — 100 6.0 — — 68 — 86 t PLH 2.0 — — 250 — 315 t PHL 4.5 — 25 50 — 63 6.0 — — 43 — 54 t PLH 2.0 — — 150 — 190 t PHL 4.5 — 17 30 — 38 6.0 — — 26 — 33 t PLH 2.0 — — 400 — 500 t PHL 4.5 — 35 80 — 100 6.0 — — 68 — 86 2.0 80 — — 100 — 4.5 16 6 — 20 — 6.0 14 — — 17 — 2.0 100 — — 125 — 4.5 20 4 — 25 — 6.0 17 — — 21 — 2.0 5 — — 5 — 4.5 5 0 — 5 — 6.0 5 — — 5 — 2.0 — — 60 — 75 4.5 — 4 12 — 15 6.0 — — 10 — 13 2.0 — — 75 — 95 4.5 — 5 15 — 19 6.0 — — 13 — 16 — — 5 10 — 10 Item Pulse width Setup time Hold time Output rise time Output fall time Input capacitance Symbol t PHL tw t su th t TLH t THL Cin BI to a – g LT to a – g LE to a – g ns ns ns ns ns pF 5 Unit: mm 19.20 20.00 Max 1 7.40 Max 9 6.30 16 8 1.3 0.48 ± 0.10 2.54 Min 5.06 Max 2.54 ± 0.25 0.51 Min 1.11 Max 7.62 + 0.13 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-16 Conforms Conforms 1.07 g Unit: mm 10.06 10.5 Max 9 1 8 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.80 Max *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 5.5 16 0.20 7.80 +– 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DA — Conforms 0.24 g Unit: mm 9.9 10.3 Max 9 1 8 0.635 Max *0.42 ± 0.08 0.40 ± 0.06 0.15 *0.22 ± 0.03 0.20 ± 0.03 1.27 0.11 0.14 +– 0.04 1.75 Max 3.95 16 0.10 6.10 +– 0.30 1.08 0° – 8° 0.67 0.60 +– 0.20 0.25 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DN Conforms Conforms 0.15 g Cautions 1. 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