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Details, datasheet, quote on part number:NE587D
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Datasheet text preview:
Philips Semiconductors Linear Products
Product specification
LED decoder/driver
NE587
DESCRIPTION
The NE587 is a latch/decoder/driver for 7-segment common anode LED displays. The NE587 has a programmable current output up to 50mA which is essentially independent of output voltage, power supply voltage, and temperature. The data (BCD) inputs and LE (latch enable) input are low-loading so that they are compatible with any data bus system. The 7-segment decoding is implemented with a ROM so that alternative fonts can be made available.
PIN CONFIGURATIONS
N Package
D1 D2 LE BI/RBO RBI 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 V CC f g a b c d e POWER GND
FEATURES
· Latched BCD inputs · Low loading bus-compatible inputs · Ripple-blanking on leading- and/or trailing-edge zeros
APPLICATIONS
D3 D0 IP DIG GND
D1 Package
· Digital panel motors · Measuring instruments · Test equipment · Digital clocks · Digital bus monitoring
D1 D2 LE BI/RBO RBI
1 2 3 4 5
20 19 18 17 16 15 14 13 12 11
V CC f g a b NC c d e POWER GND
NC 6 D3 D0 IP 7 8 9
DIG GND 10 NOTE: 1. SOL and non-standard pinout.
ORDERING INFORMATION
DESCRIPTION 20-Pin Plastic Small Outline Large (SOL) Package 18-Pin Plastic Dual In-Line Package (DIP) NOTES: 1. SOL and non-standard pinout TEMPERATURE RANGE 0 to +70°C 0 to +70°C ORDER CODE NE587D1 NE587N DWG # 0172D 0407A
ABSOLUTE MAXIMUM RATINGS
TA=25°C unless otherwise specified. SYMBOL VCC VIN VOUT PD TA TJ TSTG TSOLD Supply voltage Input voltage (D0-D3, LE, RBI) Output voltage (a-g, RBO) Power dissipation (25°C)1 Ambient temperature range Junction temperature Storage temperature range Soldering temperature (10sec max) PARAMETER RATING -0.5 to +7 -0.5 to +15 -0.5 to +7 1000 0 to 70 150 -65 to +150 300 UNIT V V V mW °C °C °C °C
NOTES: 1. Derate power dissipation as indicated N package--95°C/W above 55°C
August 31, 1994
530
853-1095 13721
Philips Semiconductors Linear Products
Product specification
LED decoder/driver
NE587
BLOCK DIAGRAM
BI/RBO (4)
VCC (18)
..
RBI (5) D0 D1 D2 D3
(7) (1) (2) (6) DATA LATCHES BCD TO 7-SEGMENT DECODER
LE
(3) a (15) b (14)
IP
(8)
BANDGAP REFERENCE
SEGMENT CURRENT DRIVER
c (13) d (12) e (11)
GND (9)
..
POWER GND (10)
f (17) g (16)
August 31, 1994
531
Philips Semiconductors Linear Products
Product specification
LED decoder/driver
NE587
DC ELECTRICAL CHARACTERISTICS
VCC=4.75 to 5.25V, 0°C 1V VCC=5.25V ICCI Supply current All outputs blanked 50 70 mA NOTES: NE587 Programming: The NE587 output current can be programmed, provided a program resistor, RP, be connected between IP (Pin 8) and Ground (Pin 9). The voltage at IP (Pin 8) is constant (1.3V). Thus, a current through RP is IP 1.3V/RP, as shown in Figure 5. IO/IP is 20 in the 15 to 50mA output current range. 33 55 mA 20 250 µA 0.90 1.00 1.10 20 25 30 mA 3.5 4.5 V 0.2 0.5 V -0.7 mA -5 -200 µA 1.0 15 10 10 15 100 µA All inputs except BI BI TEST CONDITIONS LIMITS Min 4.75 2.0 2.0 Typ 5.00 Max 5.25 15 5.5 0.8 -1.5 V V µA UNIT V V
August 31, 1994
532
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