PC8523-1 Просмотр технического описания (PDF) - NXP Semiconductors.
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PC8523-1 Datasheet PDF : 78 Pages
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NXP Semiconductors
PCF8523
Real-Time Clock (RTC) and calendar
26&,
26&2
9''
,17&/.287
QF
9%$7
3&)8
6&/
966
QF
6'$
,17
&/.287
DDD
Viewed from active side. For mechanical details, see Figure 42 on page 59.
Fig 5. Pin configuration for PCF8523U
7.2 Pin description
Table 5. Pin description
Input or input/output pins must always be at a defined level (VSS or VDD) unless otherwise specified.
Symbol
Pin
Type
Description
SO8
HVSON8
TSSOP14 PCF8523U
(PCF8523T) (PCF8523TK) (PCF8523TS)
OSCI
1
1
1
2
input
oscillator input;
high-impedance node[1]
OSCO
2
2
2
3
output
oscillator output; high-impedance
node[1]
n.c.
-
-
3, 6, 9, 12[2] 6 and 11[2] -
not connected; do not connect
and do not use it as feed through
VBAT
VSS
INT2
3
3
4
4
4[3]
5
-
-
7
4
supply
battery supply voltage
5[4]
supply
ground supply voltage
7
output
interrupt 2 (open-drain, active
LOW)
CLKOUT[5]
-
-
8
8
output
clock output (open-drain)
SDA
5
5
10
9
input/output serial data input/output
SCL
6
6
11
10
input
serial clock input
INT1/CLKOUT[5] 7
7
13
12
output
interrupt 1/clock output
(open-drain)
VDD
8
8
14
1
supply
supply voltage
[1] Wire length between quartz and package should be minimized.
[2] For manufacturing tests only; do not connect it and do not use it.
[3] The die paddle (exposed pad) is connected to VSS and should be electrically isolated.
[4] The substrate (rear side of the die) is connected to VSS and should be electrically isolated.
[5] The PCF8523 can either drive the CLKOUT or the INT1.
PCF8523
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 28 April 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
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