CY14B108K
CY14B108M
8-Mbit (1024 K × 8/512 K × 16) nvSRAM
with Real Time Clock
8-Mbit (1024 K × 8/512 K × 16) nvSRAM with Real Time Clock
Features
■ 25 ns and 45 ns access times
■ Internally organized as 1024 K × 8 (CY14B108K) or 512 K × 16
(CY14B108M)
■ Hands off automatic STORE on power-down with only a small
capacitor
■ STORE to QuantumTrap nonvolatile elements is initiated by
software, device pin, or AutoStore on power-down
■ RECALL to SRAM initiated by software or power-up
■ High reliability
■ Infinite Read, Write, and RECALL cycles
■ 1 million STORE cycles to QuantumTrap
■ 20 year data retention
■ Single 3 V +20%, –10% operation
■ Data integrity of Cypress nonvolatile static RAM (nvSRAM)
combined with full-featured real time clock (RTC)
■ Watchdog timer
■ Clock alarm with programmable interrupts
■ Capacitor or battery backup for RTC
■ Industrial temperature
■ 44 and 54-pin thin small outline package (TSOP) Type II
■ Pb-free and restriction of hazardous substances (RoHS)
compliant
Functional Description
The Cypress CY14B108K/CY14B108M combines a 8-Mbit
nonvolatile static RAM (nvSRAM) with a full featured RTC in a
monolithic integrated circuit. The embedded nonvolatile
elements incorporate QuantumTrap technology producing the
world’s most reliable nonvolatile memory. The SRAM is read and
written infinite number of times, while independent nonvolatile
data resides in the nonvolatile elements.
The RTC function provides an accurate clock with leap year
tracking and a programmable, high accuracy oscillator. The
alarm function is programmable for periodic minutes, hours,
days, or months alarms. There is also a programmable watchdog
timer for process control.
For a complete list of related documentation, click here.
Errata: AutoStore Disable feature does not work in the device. For more information, see Errata on page 33. Details include errata trigger conditions, scope of impact,
available workarounds, and silicon revision applicability.
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-47378 Rev. *N
• San Jose, CA 95134-1709 • 408-943-2600
Revised November 23, 2017
