參數(shù)資料
型號(hào)： DS1321S/T&R
廠商： Maxim Integrated
文件頁(yè)數(shù)： 1/13頁(yè)
文件大小： 0K
描述： IC CTRLR NV W/BATT MON 5V 16SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
控制器類型： 非易失性 RAM
電源電壓： 4.75 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
封裝/外殼： 16-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC
包裝： 帶卷 (TR)
1 of 13
FEATURES
Converts CMOS SRAM into nonvolatile
memory
Unconditionally write-protects SRAM when
VCC is out of tolerance
Automatically switches to battery backup
supply when VCC power failure occurs
Flexible memory organization
- Mode 0: 4 banks with 1 SRAM each
- Mode 1: 2 banks with 2 SRAMs each
- Mode 2: 1 bank with 4 SRAMs each
Monitors voltage of a lithium cell and
provides advanced warning of impending
battery failure
Signals low-battery condition on active low
Battery Warning output signal
Resets processor when power failure occurs
and holds processor in reset during system
power-up
Optional 5% or 10% power-fail detection
16-pin PDIP, 16-pin SO and 20-pin TSSOP
packages
Industrial temperature range of -40°C to
+85°C
PIN DESCRIPTION
VCCI
- +5V Power Supply Input
VCCO
- SRAM Power Supply Output
VBAT
- Backup Battery Input
A, B
- Address Inputs
CEI1
- CEI4 - Chip Enable Inputs
CEO1
- CEO4 - Chip Enable Outputs
TOL
- VCC Tolerance Select
BW
- Battery Warning Output (Open
Drain)
RST
- Reset Output (Open Drain)
MODE
- Mode Input
GND
- Ground
NC
- No Connection
PIN ASSIGNMENT
DS1321
Flexible Nonvolatile Controller with
Lithium Battery Monitor
1
2
3
4
20
19
18
17
5
6
7
8
9
10
11
12
13
14
15
16
NC
DS1321E 20-Pin TSSOP
VCCI
RST
BW
CEO1
CEO2
NC
CEO3
CEO4
NC
MODE
VCCO
VBAT
TOL
CEI1
CEI2
NC
A/CEI3
B/CEI4
GND
1
2
3
4
16
15
14
13
5
6
7
8
9
10
11
12
VCCI
RST
BW
CEO1
CEO2
CEO3
CEO4
MODE
VCCO
VBAT
TOL
CEI1
CEI2
A/CEI3
B/CEI4
GND
DS1321 16-Pin PDIP
(300 mils)
1
2
3
4
16
15
14
13
5
6
7
8
9
10
11
12
VCCI
RST
BW
CEO1
CEO2
CEO3
CEO4
MODE
VCCO
VBAT
TOL
CEI1
CEI2
A/CEI3
B/CEI4
GND
DS1321S 16-Pin SO
(150 mils)
19-6312; Rev 6/12
相關(guān)PDF資料
PDF描述
DS1321 IC CTRLR NV W/BATT MON 5V 16-DIP
T86E107M016EBSL CAP TANT 100UF 16V 20% 2917
VI-B12-EU-B1 CONVERTER MOD DC/DC 15V 200W
EN95F2X5 BATTERY PK 15.0V D SIZE ALKALINE
DS1321S IC CTRLR NV W/BATT MON 5V 16SOIC
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