參數資料
型號: DS1554P-70
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: Timer or RTC
英文描述: 0 TIMER(S), REAL TIME CLOCK, DMA34
封裝: POWERCAP MODULE-34
文件頁數: 3/21頁
文件大小: 371K
代理商: DS1554P-70
DS1554 256k, Nonvolatile, Y2K-Compliant Timekeeping RAM
11 of 21
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground………………………..………………………………-0.3V to +6.0V
Storage Temperature Range…………………………………………………………………………...-40°C to +85°C
Soldering Temperature……………………………………...……………See IPC/JEDEC Standard J-STD-020A for
Surface-Mount Devices (Note 8)
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect
reliability.
OPERATING RANGE
RANGE
TEMP RANGE
VCC
Commercial
0°C to +70°C
3.3V
±10% or 5V ±10%
Industrial
-40°C to +85°C
3.3V
±10% or 5V ±10%
RECOMMENDED DC OPERATING CONDITIONS
(TA = Over the operating range)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
VCC = 5V
±10%
2.2
VCC +
0.3V
V
Logic 1 Voltage All Inputs
(Note 1)
VIH
VCC = 3.3V
±10%
2.0
VCC +
0.3V
V
VIL
VCC = 5V
±10%
-0.3
+0.8
Logic 0 Voltage All Inputs
(Note 1)
VIL
VCC = 3.3V
±10%
-0.3
+0.6
DC ELECTRICAL CHARACTERISTICS
(VCC = 5.0V
±10%, TA = Over the operating range.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Active Supply Current
ICC
(Notes 2, 3)
40
75
mA
TTL Standby Current
(
CE = VIH)
ICC1
(Notes 2, 3)
3
6
mA
CMOS Standby Current
(
CE
VCC - 0.2V)
ICC2
(Notes 2, 3)
2
6
mA
Input Leakage Current
(Any Input)
IIL
-1
+1
mA
Output Leakage Current
(Any Output)
IOL
-1
+1
mA
Output Logic 1 Voltage
(IOUT = -1.0 mA)
VOH
(Note 1)
2.4
V
VOL1
IOUT = 2.1 mA,
DQ0–7 Outputs
(Note 1)
0.4
V
Output Logic 0 Voltage
VOL2
IOUT = 7.0 mA,
IRQ
/FT, and RST
Outputs
(Notes 1, 5)
0.4
V
Write Protection Voltage
VPF
(Note 1)
4.20
4.50
V
Battery Switchover Voltage
VSO
(Notes 1,4)
VBAT
V
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DS1554 REAL TIME CLOCK, DMA32
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