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參數(shù)資料
| 型號： | FM32L276-G |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封裝： | GREEN, MS-012AB, SOIC-14 |
| 文件頁數(shù)： | 15/21頁 |
| 文件大?。?/td> | 418K |
| 代理商： | FM32L276-G |
FM32L278/L276/L274/L272 - 3V I2C Companion
Rev. 3.1
July 2010
Page 3 of 21
Figure 1. Block Diagram
Pin Descriptions
Pin Name
Type
Pin Description
A0, A1
Input
Device select inputs are used to address multiple memories on a serial bus. To select the
device the address value on the two pins must match the corresponding bits contained in
the device address. The device select pins are pulled down internally.
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.
PFO
Output
Power Fail Output: This is the early power-fail output.
/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.
VBAK
Supply
Backup supply voltage: A 3V battery or a large value capacitor. If no backup supply is
used, this pin should be tied to ground and the VBC bit should be cleared. The trickle
charger is UL recognized and ensures no excessive current when using a lithium battery.
VDD
Supply
Supply Voltage
VSS
Supply
Ground
FRAM
Array
2-Wire
Interface
SCL
SDA
RST
A1, A0
VDD
VBAK
2.5V
-
+
Special
Function
Registers
S/N
LockOut
Watchdog
LV Detect
Switched Power
Battery Backed
Nonvolatile
Event
Counters
CNT1
CNT2
PFI
+
-
1.2V
PFO
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| FM32L276-GTR | 功能描述:F-RAM 64K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
| FM32L278 | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:3V Integrated Processor Companion with Memory |
| FM32L278-G | 功能描述:F-RAM 256K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
| FM32L278-GTR | 功能描述:F-RAM 256K w/Pwr Mon WDT Bat Sw PF Ser Num RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
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