HANBit
Power Down/Up Trip Points DC Characteristics
Symbol
V
PFD
Parameter
Power-fail Deselect Voltage
(1,2)
HMNR1288D(V)
Min
HMNR1288D
HMNR1288DV
4.2
2.7
Typ
4.35
2.9
3.0
V
PFD
-100mV
Max
4.5
3.0
Unit
V
V
V
V
YEARS
V
SO
T
DR
(3)
Battery Back-up Switchover
Voltage
HMNR1288D
HMNR1288DV
10
Expected Data Retention Time
Note:
1. All voltages referenced to V
SS
.
2. Valid for Ambient Operating Temperature: T
A
= 0 to 70° C; V
CC
= 4.5 to 5.5V or 3.0 to 3.6V (except where noted).
3. At 25° C.
Register Map
Address
1FFFFh
1FFFEh
1FFFDh
1FFFCh
1FFFBh
1FFFAh
1FFF9h
1FFF8h
1FFF7h
1FFF6h
1FFF5h
1FFF4h
1FFF3h
1FFF2h
1FFF1h
1FFF0h
WDF
0
0
0
0
0
ST
W
WDS
AFE
RPT4
RPT3
RPT2
RPT1
R
BMB4
0
RPT5
0
Data
D7
D6
D5
D4
D3
D2
Year
10M
Month
Date : Day of Month
0
Day
Hours(24 Hour Format)
Minutes
Seconds
Calibration
BMB2
AL10M
BMB1
BMB0
RB1
RB0
D1
D0
Funtion /
Range BCD Format
Year
Month
Date
Day
Hours
Minutes
Seconds
Control
Watchdog
AL Month
AL Date
AL Hours
AL Minutes
AL Seconds
Century
Y
Flag
01-12
01-31
00-23
00-59
00-59
00-99
00-99
01-12
01-31
01-07
00-23
00-59
00-59
10Years
0
0
FT
0
0
10 Date
0
0
10 Hours
10 Minutes
10 Seconds
S
BMB3
ABE
Alarm Month
Alarm Date
Alarm Hours
Alarm Minutes
Alarm Seconds
100 Years
AL 10 Date
AL 10 Hours
AL 10 Minutes
AL 10 Seconds
1000 Years
AF
0
BL
Y
Y
Y
Keys
:
S = SIGN BIT
FT = FREQUENCY TEST BIT
R = READ BIT
W = WRITE BIT
ST = STOP BIT
0 = MUST BE SET TO
’
0’
Y =
’
OR
’
1’
0‘
BL = BATTERY LOW (READ ONLY)
AF = ALARM FLAG (READ ONLY)
WDS = WATCHDOG STEERING BIT
BMB0-BMB4 = WATCHDOG MULTIPLIER BITS
RB0-RB1 = WATCHDOG RESOLUTION BITS
AFE = ALARM FLAG ENABLE
ABE = ALARM IN BATTERY BACK-UP MODE ENABLE
RPT1-RPT5 = ALARM REPEAT MODE BIT S
WDF = WATCHDOG FLAG (READ ONLY)
URL : www.hbe.co.kr
Rev. 1.0 (April, 2002)
9
HANBit Electronics Co.,Ltd
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
