PCF2127AT/2Y NXP Semiconductors, PCF2127AT/2Y Datasheet - Page 73

• Manufacturer Part Number: PCF2127AT/2Y
• Description: Real Time Clock Integrated RTC TCXO quartz crystal
• Manufacturer: NXP Semiconductors
• Series: PCF2127ATr

Specifications of PCF2127AT/2Y

• Rohs: yes
• Function: Clock, Calendar, Temperature
• Rtc Bus Interface: I2C
• Date Format: DW
• Time Format: HH
• Rtc Memory Size: 512 B
• Supply Voltage - Max: 4.2 V
• Supply Voltage - Min: 1.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-163-1
• Battery Backup Switching: Yes

PCF2127AT
NXP Semiconductors
Integrated RTC, TCXO and quartz crystal
START
BIT 7
BIT 6
BIT 0
ACKNOWLEDGE
STOP
PROTOCOL
CONDITION
MSB
(A6)
LSB
(A)
CONDITION
(S)
(A7)
(R/W)
(P)
t
t
t
SU;STA
LOW
HIGH
1 / f
SCL
SCL
t
t
t
BUF
r
f
SDA
t
t
t
t
t
HD;STA
SU;DAT
HD;DAT
VD;DAT
SU;STO
mbd820
2
Fig 52. I
C-bus timing diagram; rise and fall times refer to 30 % and 70 %
14. Application information
For information about application configuration, see
Ref. 3
“AN10857”.
PCF2127AT
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 5 — 28 January 2013
73 of 85