- 您现在的位置：买卖IC网 > PDF目录67504 > FM4005-G SPECIALTY CONSUMER CIRCUIT, PDSO14 PDF资料下载
参数资料
| 型号： | FM4005-G |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封装： | GREEN, MS-012AB, SOIC-14 |
| 文件页数： | 17/23页 |
| 文件大小： | 244K |
| 代理商： | FM4005-G |
N
O
T R
EC
O
M
EN
D
ED
FO
R
N
EW
D
ES
IG
N
S
Al
te
rn
at
iv
es
: F
M
31
27
2
(5
V)
or
FM
31
L2
72
(3
V)
FM4005
Rev. 2.4
Jan. 2010
Page 3 of 23
Figure 1. Block Diagram
Pin Descriptions
Pin Name
Type
Pin Description
CNT1, CNT2
Input
Event Counter Inputs: These battery-backed inputs increment counters when an edge is
detected on the corresponding CNT pin. The polarity is programmable. These pins
should not be left floating. Tie to ground if pins are not used.
CAL/PFO
Output
In calibration mode, this pin supplies a 512 Hz square-wave output for clock
calibration. In normal operation, this is the early power-fail output.
X1, X2
I/O
32.768 kHz crystal connection. When using an external oscillator, apply the clock to
X1 and leave X2 floating.
/RST
I/O
Active low reset output with weak pull-up. Also input for manual reset.
SDA
I/O
Serial Data & Address: This is a bi-directional line for the two-wire interface. It is
open-drain and is intended to be wire-OR’d with other devices on the two-wire bus.
The input buffer incorporates a Schmitt trigger for noise immunity and the output
driver includes slope control for falling edges. A pull-up resistor is required.
SCL
Input
Serial Clock: The serial clock line for the two-wire interface. Data is clocked out of the
part on the falling edge, and in on the rising edge. The SCL input also incorporates a
Schmitt trigger input for noise immunity.
PFI
Input
Early Power-fail Input: Typically connected to an unregulated power supply to detect
an early power failure. This pin should not be left floating.
DNU
-
Do Not Use: This pin must be left floating.
VBAK
Supply
Backup supply voltage: A 3V battery or a large value capacitor. If VDD<3.6V and no
backup supply is used, this pin should be tied to VDD. If VDD>3.6V and no backup
supply is used, this pin should be left floating and the VBC bit should be set.
VDD
Supply
Supply Voltage.
VSS
Supply
Ground
SCL
SDA
Nonvolatile
Battery Backed
2-Wire
Interface
RST
CAL/PFO
PFI
VDD
VBAK
RTC
2.5V
-
+
RTC Registers
Event
Counters
CNT1
CNT2
Special
Function
Registers
S/N
X1
X2
LockOut
+
-
1.2V
Watchdog
LV Detect
Switched Power
512Hz
RTC Cal.
相关PDF资料 |
PDF描述 |
|---|---|
| FME270-461/ES | 1 FUNCTIONS, 400 V, 1.5 A, DATA LINE FILTER |
| FME270-461V/ES | 1 FUNCTIONS, 400 V, 1.5 A, DATA LINE FILTER |
| FME270-461W/ES | 1 FUNCTIONS, 400 V, 1.5 A, DATA LINE FILTER |
| FME270-461Y/ES | 1 FUNCTIONS, 400 V, 1.5 A, DATA LINE FILTER |
| FME270-461Z/ES | 1 FUNCTIONS, 400 V, 1.5 A, DATA LINE FILTER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FM4005-GTR | 功能描述:F-RAM RTC RTC Alarm Pwr Mon WDT Bat Sw RoHS:否 存储容量:512 Kbit 组织:64 K x 8 接口:SPI 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube 制造商:Cypress Semiconductor |
| FM4005-L | 制造商:FORMOSA 制造商全称:Formosa MS 功能描述:Chip Silicon Rectifier - Glass passivated type |
| FM4005M | 制造商:WEITRON 制造商全称:Weitron Technology 功能描述:Surface Mount Standard Recovery Glass Passivated Rectifiers |
| FM4005-M | 制造商:FORMOSA 制造商全称:Formosa MS 功能描述:Glass passivated type |
| FM4005MH | 制造商:WEITRON 制造商全称:Weitron Technology 功能描述:Surface Mount Standard Recovery Glass Passivated Rectifiers |
发布紧急采购，3分钟左右您将得到回复。