Product Summary

The X1228V14I-2.7A is a Real Time Clock with clock/calendar, two polled alarms with integrated 512x8 EEPROM, oscillator compensation, CPU Supervisor (POR/LVS and WDT) and battery backup switch. The oscillator uses an external, low-cost 32.768kHz crystal. All compensation and trim components are integrated on the chip. This eliminates several external discrete components and a trim capacitor, saving board area and component cost. The X1228V14I-2.7A provides 4K bits of EEPROM with 8 modes of BlockLock control. And the X1228V14I-2.7A is widely used in utility meters, HVAC equipment, audio / video components and so on.

Parametrics

X1228V14I-2.7A absolute maximum ratings: (1)Temperature Under Bias: -65 to +135℃; (2)Storage Temperature: -65 to +150℃; (3)Voltage on VCC, VBACK and PHZ/IRQ pin (respect to ground): -0.5V to 7.0V; (4)Voltage on SCL, SDA, X1 and X2 pin (respect to ground): -0.5V to 7.0V or 0.5V above VCC or VBACK(whichever is higher); (5)DC Output Current: 5 mA; (6)Lead Temperature (Soldering, 10 sec): 300℃.

Features

X1228V14I-2.7A features: (1)Real Time Clock/Calendar; (2)2 Polled Alarms (Non-volatile); (3)Oscillator Compensation on chip; (4)CPU Supervisor Functions; (5)Battery Switch or Super Cap Input; (6)512 x 8 Bits of EEPROM; (7)High Reliability; (8)2-Wire Interface interoperable with I2C; (9)Frequency Output (SW Selectable: Off, 1Hz, 4096Hz, or 32.768kHz); (10)Low Power CMOS; (11)Small Package Options: 14-Lead SOIC and 14-Lead TSSOP.

Diagrams

X1228V14I-2.7A block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
X1228V14I-2.7A
X1228V14I-2.7A


IC RTC/CAL/CPU SUP EE 14-TSSOP

Data Sheet

Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
X1226
X1226

Other


Data Sheet

Negotiable 
X122621-AT
X122621-AT

Honeywell

Basic / Snap Action / Limit Switches SEALED OI-SE SWITCH

Data Sheet

0-1: $231.81
1-2: $219.82
2-5: $209.01
5-10: $199.21
X122623-AT
X122623-AT

Honeywell

Basic / Snap Action / Limit Switches SEALED OI-SE SWITCH

Data Sheet

0-1: $231.81
1-2: $219.82
2-5: $209.01
5-10: $199.21
X122625-AT
X122625-AT

Honeywell

Basic / Snap Action / Limit Switches SEALED OI-SE SWITCH

Data Sheet

0-1: $231.81
1-2: $219.82
2-5: $209.01
5-10: $199.21
X122627-AT
X122627-AT

Honeywell

Basic / Snap Action / Limit Switches SEALED OI-SE SWITCH

Data Sheet

0-1: $231.81
1-2: $219.82
2-5: $209.01
5-10: $199.21
X1226S8
X1226S8


IC RTC CLNDR OUTFREQ 4K EE 8SOIC

Data Sheet

Negotiable