參數(shù)資料
型號(hào): DS1384
英文描述: Watchdog Timekeeping Controller
中文描述: 看門(mén)狗實(shí)時(shí)時(shí)鐘控制器
文件頁(yè)數(shù): 1/17頁(yè)
文件大小: 307K
代理商: DS1384
1 of 17
091300
FEATURES
Keeps track of hundredths of seconds,
seconds, minutes, hours, days, date of the
month, months, and years with leap year
compensation valid up to 2100
Watchdog timer restarts an out-of-control
processor
Alarm function schedules real-time related
activities
Programmable interrupts and square wave
outputs
Bytewide RAM-like access
50 bytes of on board user RAM
Greater than 10 years timekeeping and data
retention in the absence of power with small
lithium coin cells
Supports up to 128k x 8 of external static RAM
All timekeeping registers and on board RAM
are individually addressable via the address
and data bus
ORDERING INFORMATION
DS 1384FP-12
44-Pin FP
PIN ASSIGNMENT
PIN DESCRIPTION
INTA
INTB
(INTB) - Interrupt Output B (open drain)
A0-A16
- Address Inputs
DQ0-DQ7
- Data Input/Output
- Chip Enable
- Output Enable
- Write Enable
V
CC
- +5V Input
GND
- Ground
NC
- No Connection
SQW
- Square Wave Output
X1, X2
- 32.768 kHz Crystal Connections
- Power Fail Output
- Chip Enable RAM
- Output Enable RAM
V
CCO
- Voltage Out
V
BAT1
- +3V Battery Input
V
BAT2
- +3V Battery Input
- Interrupt Output A (open drain)
CE
OE
WE
PFO
CEO
OER
DS1384
Watchdog Timekeeping
Controller
www.dalsemi.com
INTB/(INTB)
NC
A14
A12
A7
A6
A5
A4
A3
A2
A1
A15
V
BAT1
WE
A13
A8
A9
A11
OE
A10
CE
OER
A
D
D
D
G
D
D
D
D
D
C
1
11
12
22
23
33
G
X
X
G
A
I
V
C
V
C
S
P
V
B
44
34
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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