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HEF4511B

NXP
Part Number HEF4511B
Manufacturer NXP
Description BCD to 7-segment latch/decoder/driver
Published Mar 23, 2005
Detailed Description HEF4511B BCD to 7-segment latch/decoder/driver Rev. 7 — 11 November 2011 Product data sheet 1. General description Th...
Datasheet PDF File HEF4511B PDF File

HEF4511B
HEF4511B

Overview
HEF4511B BCD to 7-segment latch/decoder/driver Rev.
7 — 11 November 2011 Product data sheet 1.
General description The HEF4511B is a BCD to 7-segment latch/decoder/driver with four address inputs (D0 to D3), an active HIGH latch enable input (LE), an active LOW ripple blanking input (BL), an active LOW lamp test input (LT), and seven active HIGH NPN bipolar transistor segment outputs (Qa to Qg).
When LE is LOW and BL is HIGH, the state of the segment outputs (Qa to Qg) is determined by the data on D0 to D3.
When LE goes HIGH, the last data present on D0 to D3 is stored in the latches and the segment outputs remain unchanged.
When LT is LOW, all of the segment outputs are HIGH independent of all other input conditions.
With LT HIGH, a LOW on BL forces all segment outputs LOW.
The inputs LT and BL do not affect the latch circuit.
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground).
Unused inputs must be connected to VDD, VSS, or another input.
2.
Features and benefits  Fully static operation  5 V, 10 V, and 15 V parametric ratings  Standardized symmetrical output characteristics  Specified from 40 C to +85 C and 40 C to +125 C  Complies with JEDEC standard JESD 13-B 3.
Ordering information Table 1.
Ordering information All types operate from 40 C to +125 C.
Type number Package Name Description HEF4511BP DIP16 plastic dual in-line package; 16 leads (300 mil) HEF4511BT SO16 plastic small outline package; 16 leads; body width 3.
9 mm Version SOT38-4 SOT109-1 NXP Semiconductors 4.
Functional diagram HEF4511B BCD to 7-segment latch/decoder/driver 5 LE 7 D0 12 D1 D2 LATCHES 6 D3 4 BL DECODER 3 LT Fig 1.
Functional diagram DRIVERS Qg Qf 14 15 Qe Qd Qc 9 10 11 Qb Qa 12 13 001aae675 driver logic Fig 2.
Schematic diagram of output stage VDD VSS IOH + VOH − 001aae677 HEF4511B Product data sheet All information provided in this document is subject to legal disclaimers.
Rev.
7 — 11 ...


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