參數(shù)資料
型號(hào): DS1558Y-TRL
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 1/18頁(yè)
文件大?。?/td> 0K
描述: IC RTC W/NV RAM 5V 48-TQFP
標(biāo)準(zhǔn)包裝: 2,000
類(lèi)型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,監(jiān)視計(jì)時(shí)器,Y2K
時(shí)間格式: HH:MM:SS(24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: 并聯(lián)
電源電壓: 4.5 V ~ 5.5 V
電壓 - 電源,電池: 2.5 V ~ 3.7 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 帶卷 (TR)
1 of 18
REV: 071305
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
FEATURES
Integrated Real-Time Clock (RTC), Power-
Fail Control Circuit, and NV RAM Controller
Clock Registers are Accessed Identically to
the Static RAM; These Registers are Resident
in the 16 Top RAM Locations
Century Register
Greater than 10 Years of Timekeeping and
Data Retention in the Absence of Power with
Small Lithium Coin Cell(s) and Low-Leakage
SRAM
Precision Power-On Reset
Programmable W
Alarm
BCD-Coded Year, Month, Date, Day, Hours,
Minutes, and Seconds with Automatic Leap-
Year Compensation Valid Up to the Year
2100
Battery Voltage-Level Indicator Flag
Power-Fail Write Protection Allows for
10%
VCC Power-Supply Tolerance
Underwriters Laboratory (UL) Recognized
PIN CONFIGURATION
ORDERING INFORMATION
PART
TEMP RANGE
VOLTAGE
(V)
PIN-PACKAGE
TOP MARK*
DS1558
Watchdog Clock with NV RAM Control
www.maxim-ic.com
atchdog Timer and RTC
DS1558W
-40°C to +85°C
3.3
48 TQFP (7 x 7 x 1mm)
DS1558D
DS1558W+
-40°C to +85°C
3.3
48 TQFP (7 x 7 x 1mm)
DS1558D
DS1558W-TRL
-40°C to +85°C
3.3
48 TQFP (7 x 7 x 1mm)
DS1558D
DS1558W+TRL
-40°C to +85°C
3.3
48 TQFP (7 x 7 x 1mm)
DS1558D
DS1558Y
-40°C to +85°C
5.0
48 TQFP (7 x 7 x 1mm)
DS1558B
DS1558Y+
-40°C to +85°C
5.0
48 TQFP (7 x 7 x 1mm)
DS1558B
DS1558Y-TRL
-40°C to +85°C
5.0
48 TQFP (7 x 7 x 1mm)
DS1558B
DS1558Y+TRL
-40°C to +85°C
5.0
48 TQFP (7 x 7 x 1mm)
DS1558B
+ Denotes a lead(Pb)-free/RoHS-compliant device.
* A “+” anywhere on the top mark indicates a lead-free device.
A18
A16
A12
A6
A4
A3
A2
A1
A5
A7
A14
N.C.
V
CCO
V
CC
N.
C
.
A
17
GND
R
ST
N.
C
.
N.
C
.
DQ0
DQ1
DQ2
DQ6
VBAT1
WE
IRQ/FT
A8
OE
A10
CE
X
1
GND
V
BAT
2
A15
A13
OER
A9
A11
35
36
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
10
12
11
9
48
47
46
45
44
43
42
41
40
39
38
37
CE
R
DQ7
DQ5
DQ4
DQ3
GND
A0
DS1558
X
2
N.
C
.
TQFP
TOP VIEW
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