74LV4799 Ver la hoja de datos (PDF) - Philips Electronics
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74LV4799 Datasheet PDF : 18 Pages
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Philips Semiconductors
Timer for NiCd and NiMH chargers
Product specification
74LV4799
FUNCTIONAL DIAGRAM
VCC
7 SEL
9
5
DIS
PWRS
14
15
SCAN
SCI
GND
GND
GND
CP
3–STAGE
DIVIDER
POWER–ON
RESET
CONTROL LOGIC
5–14 STAGE
DIVIDER
10–STAGE
UP/DOWN
COUNTER
13 IOSC
OSCILLATOR CP
4
Vin
EN 2
EN 3
GND GND
MOLLI/SCO
6
GND
LED 1
IEC LOGIC SYMBOL
RC
10
RD
11
RS
12
GND
SV01644
F
BATT. TIMER
G
13
IOSC
12
RS
11
RD
10
RC
1
9
DIS
15
SCI
14
SCAN/Z1
U+[1]
4
2
EN
3
SCO
6
MOLLI
I=0
16
5
CT=0
U+[2]
PWRS
8
0V
7
SEL
1
LED
SV01645
1998 Apr 20
3
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