PCF2128T Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
PCF2128T Datasheet PDF : 10 Pages
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NXP Semiconductors
5. Block diagram
7
CLKOUT
VOUT 18
VDD 20
VBAT 19
VSS 8
OSCI
32.768 kHz
OSCO
TCXO
BATTERY BACK UP
SWITCH-OVER
CIRCUITRY
internal
power
supply
TEMP
16
RST
4
SDA/CE
3
SDO
2
SDI
SCL 1
5
IFS
OSCILLATOR
MONITOR
RESET
SERIAL BUS
INTERFACE
INTERFACE
SELECTORS
SCL
SDA/CE
6
TS
I2C BUS
INTERFACE
SCL
SDO
SDI
SDA/CE
15
PFI
1.25 V
(internal)
TEMP
14
PFO
Fig 1. Block diagram of PCF2128
512 BYTES
STATIC RAM
TEMPERATURE
SENSOR
PCF2128
Real time clock / calendar
INT
17
DIVIDER
AND
TIMER
1 Hz
LOGIC
CONTROL
ADDRESS
REGISTER
CONTROL 1
00
CONTROL 2
01
CONTROL 3
02
SECONDS
03
MINUTES
04
HOURS
05
DAYS
06
WEEKDAYS
07
MONTHS
08
YEARS
09
SECOND ALARM
0A
MINUTE ALARM
0B
HOUR ALARM
0C
DAY ALARM
0D
WEEKDAY ALARM
0E
CLOCKOUT CONTROL 0F
TIMER CONTROL
10
COUNTDOWN TIMER 11
1/16 SECOND TIMESTAMP 12
SECOND TIMESTAMP 13
MINUTE TIMESTAMP 14
HOUR TIMESTAMP
15
DAY TIMESTAMP
16
MONTH TIMESTAMP 17
YEAR TIMESTAMP
18
CRYSTAL AGING OFFSET 19
RAM ADDRESS MSB 1A
RAM ADDRESS LSB
1B
RAM WRITE
1C
RAM READ
1D
13
TEST
001aag059_02
PCF2128_SDS_0
Preliminary [short] data sheet
Rev. 00.03 — 4 June 2007
© NXP B.V. 2007. All rights reserved.
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