Product Summary

The X1226 is a real time clock/calendar with EEPROM. The X1226 is a Real Time Clock with clock/calendar, two polled alarms with integrated 512x8 EEPROM, oscillator compensation, and battery backup switch. The oscillator X1226 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.

Parametrics

X1226 absolute maximum ratings: (1)Temperature Under Bias: -65℃ to +135℃; (2)Storage Temperature: -65℃ to +150℃; (3)Voltage on VCC, VBACK and PHZ/IRQ; (4)pin (respect to ground): -0.5V to 7.0V; (5)Voltage on SCL, SDA, X1 and X2 pin (respect to ground): -0.5V to 7.0V or 0.5V; (6)above VCC or VBACK (whichever is higher); (7)DC Output Current: 5 mA; (8)Lead Temperature (Soldering, 10s): 300℃.

Features

X1226 features: (1)Real Time Clock/Calendar; (2)Tracks Time in Hours, Minutes, and Seconds; (3)Day of the Week, Day, Month, and Year; (4)2 Polled Alarms (Non-volatile); (5)Settable on the Second, Minute, Hour, Day of the Week, Day, or Month; (6)Repeat Mode (periodic interrupts); (7)Oscillator Compensation On Chip; (8)Internal Feedback Resistor and Compensation Capacitors; (9)64 Position Digitally Controlled Trim Capacitor; (10)6 Digital Frequency Adjustment Settings to ±30ppm; (11)Battery Switch or Super.

Diagrams

X1226 block diagram 

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
X122624-AT
X122624-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 
X1226S8I
X1226S8I


IC RTC/CALENDAR/4K EE 8-SOIC

Data Sheet

Negotiable