PCF1178CT NXP Semiconductors, PCF1178CT Datasheet - Page 10

• Manufacturer Part Number: PCF1178CT
• Manufacturer: NXP Semiconductors

Specifications of PCF1178CT

• Operating Supply Voltage (typ): 3.3/5V
• Number Of Digits: 4
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: SO
• Pin Count: 28
• Mounting: Surface Mount
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 6V
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
CHARACTERISTICS
V
frequency tolerance = 30
Note
1. A suitable resistor (R) must be selected (example):
1997 Apr 16
Supply
V
TC
I
C
Oscillator
t
R
C
C
Inputs
R
R
I
t
V
I
Backplane (high and low levels)
R
Segment
R
LCD
V
SYMBOL
DD
DD
osc
IL
d
O2
V
f/f
f/f
DD
PP
offset(DC)
4-digit duplex LCD car clock
EXT
fb
i
o
O
O
BP
SEG
DD
a) V
b) V
c) I
= 3 to 6 V; V
programming voltage
DD
DD
DD
must not exceed 3 mA.
= 5 V; R max. (12 V
= 5 V; R typ. (12 V
supply voltage
supply voltage variation
supply voltage variation due
to temperature
supply current
capacitance
start time
frequency deviation
frequency stability
feedback resistance
input capacitance
output capacitance
pull-up resistance
pull-up/pull-down resistance
leakage current
debounce time
output current
output resistance
output resistance
DC offset voltage
SS
= 0 V; T
PARAMETER
amb
10
= 40 to +85 C; crystal: f = 4.194304 MHz; R
6
5 V)/900 A = 7.8 k (more reserve).
; unless otherwise specified.
5 V)/700 A = 10 k .
voltage regulator programmed
to 4.5 V at T
S1 or S2 closed
V
note 1
external capacitor
nominal n = 0
S1, S2, TS, SEL and DATA
MODE
ENABLE, FLASH
S1 and S2 only
V
during programming
200 k /1 nF
100 A
100 A
V
DD
PP
DD
= V
= 4.5 V
= 100 mV
DD
CONDITIONS
amb
5 V
10
= 25 C
s
3
700
47
0
300
45
100
30
70
MIN.
= 50 ; C
950
60
1000
16
27
90
300
65
500
0.35
16
L
TYP.
= 12 pF; maximum
10
6
Product specification
6
50
200
110
1
3000
180
1000
2
100
700
3
5
50
PCF1178C
MAX.
10
10
6
6
V
mV
%/K
mV/K
ms
k
pF
pF
k
k
ms
k
k
mV
UNIT
A
F
A
A
A