pcf2127a NXP Semiconductors, pcf2127a Datasheet - Page 71

• Manufacturer Part Number: pcf2127a
• Description: Integrated Rtc, Tcxo And Quartz Crystal
• Manufacturer: NXP Semiconductors

PCF2127A
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 SU;STA
t LOW
t HIGH
1 / f SCL
SCL
t
t
r t
f
BUF
SDA
t
t
t
t HD;STA
t SU;STO
SU;DAT
VD;DAT
HD;DAT
mbd820
2
Fig 51. 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”.
PCF2127A_1
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 — 21 January 2010
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