參數(shù)資料
型號(hào): DS1244WP-120IND+
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 2/20頁(yè)
文件大?。?/td> 0K
描述: IC NVSRAM 256KBIT 120NS 34PCM
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 40
類型: Phantom 計(jì)時(shí)芯片
特點(diǎn): 閏年,NVSRAM
存儲(chǔ)容量: 32KB
時(shí)間格式: HH:MM:SS:hh(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: 并聯(lián)
電源電壓: 2.97 V ~ 3.63 V
電壓 - 電源,電池: 3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 34-PowerCap? 模塊
供應(yīng)商設(shè)備封裝: 34-PowerCap 模塊
包裝: 管件
相關(guān)產(chǎn)品: DS9034PCI+-ND - IC SRAM NV TIMEKEEPING POWERCAP
DS9034I-PCX+-ND - IC SRAM NV TIMEKEEPING POWERCAP
DS9034PC+-ND - PCM W/O CRYSTAL NV SRAM SNAP-ON
DS9034PCX+-ND - PCM W/CRYSTAL NV SRAM SNAP-ON
DS9034PCI-ND - IC SRAM NV TIMEKEEPING POWERCAP
DS90340I-PCX-ND - IC SRAM NV TIMEKEEPING POWERCAP
DS9034PC-ND - PCM W/O CRYSTAL NV SRAM SNAP-ON
DS1244/DS1244P
10 of 20
DC ELECTRICAL CHARACTERISTICS
Over the operating range (3.3V)
1B
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage Current
IIL
-1.0
+1.0
A
12
I/O Leakage Current
CE ≥ VIH ≤ VCC
IIO
-1.0
+1.0
A
Output Current at 2.4V
IOH
-1.0
mA
Output Current at 0.4V
IOL
2.0
mA
Standby Current CE = 2.2V
ICCS1
5
7
mA
Standby Current
CE = VCC - 0.5V
ICCS2
2.0
3.0
mA
Operating Current tCYC = 70ns
ICC01
50
mA
Write Protection Voltage
VPF
2.80
2.86
2.97
V
11
Battery Switchover Voltage
VSO
VBAT or VPF
8B
V
11
CAPACITANCE
(TA = +25°C)
2B
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
CIN
5
10
pF
Input/Output Capacitance
CI/O
5
10
pF
MEMORY AC ELECTRICAL CHARACTERISTICS
Over the operating range (5V)
PARAMETER
SYMBOL
9B
DS1244Y-70
3B
UNITS
4B
NOTES
10B
MIN
11B
MAX
Read Cycle Time
tRC
70
ns
Access Time
tACC
70
ns
OE
to Output Valid
tOE
35
ns
CE
to Output Valid
tCO
70
ns
OE
or CE to Output Active
tCOE
5
ns
5
Output High-Z from Deselection
tOD
25
ns
5
Output Hold from Address Change
tOH
5
ns
Write Cycle Time
tWC
70
ns
Write Pulse Width
tWP
50
ns
3
Address Setup Time
tAW
0
ns
Write Recovery Time
tWR
0
ns
Output High-Z from WE
tODW
25
ns
5
Output Active from WE
tOEW
5
ns
5
Data Setup Time
tDS
30
ns
4
Data Hold Time from WE
tDH
5
ns
4
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