Product Summary
The PCF8583T is a clock/calendar circuit based on a 2048-bit static CMOS RAM organized as 256 words by 8 bits. Addresses and data are transferred serially via the two-line bidirectional I2C-bus. The built-in word address register is incremented automatically after each written or read data byte. Address pin A0 is used for programming the hardware address, allowing the connection of two devices to the bus without additional hardware.
Parametrics
PCF8583T absolute maximum ratings: (1)VDD, supply voltage (pin 8): -0.8 to +7.0 V; (2)IDD, supply current (pin 8): 50 mA max; (3)ISS, supply current (pin 4): 50 mA max; (4)VI, input voltage: -0.8 to VDD + 0.8 V; (5)II, DC input current: 10 mA max; (6)IO, DC output current: 10 mA max; (7)Ptot, total power dissipation per package: 300 mW max; (8)PO, power dissipation per output: 50 mW max; (9)Tamb, operating ambient temperature: -40 to +85℃; (10)Tstg, storage temperature: -65 to +150℃.
Features
PCF8583T features: (1)I2C-bus interface operating supply voltage: 2.5 V to 6 V; (2)Clock operating supply voltage (0 to +70 ℃): 1.0 V to 6.0 V; (3)240 × 8-bit low-voltage RAM; (4)Data retention voltage: 1.0 V to 6 V; (5)Operating current (at fSCL = 0 Hz): max. 50 mA; (6)Clock function with four year calendar; (7)Universal timer with alarm and overflow indication; (8)24 or 12 hour format; (9)32.768 kHz or 50 Hz time base; (10)Serial input/output bus (I2C); (11)Automatic word address incrementing; (12)Programmable alarm, timer and interrupt function.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
Quantity | |||||||||||||
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PCF8583T/5,518 |
NXP Semiconductors |
Real Time Clock CLK/CALENDAR 240X8 RAM |
Data Sheet |
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PCF8583TD |
NXP Semiconductors |
Real Time Clock CLOCK CALENDAR W 256X8SRAM I2C |
Data Sheet |
Negotiable |
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PCF8583T/5,512 |
NXP Semiconductors |
Real Time Clock CLOCK CALENDAR W |
Data Sheet |
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PCF8583T |
Other |
Data Sheet |
Negotiable |
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