STMicroelectronics M40Z300
The M40Z300/W NVRAM supervisor is a self-contained device which converts a standard low-power SRAM into a non-volatile memory. When an invalid VCC condition occurs, the conditioned chip enable outputs (E1CON to E4CON) are forced inactive to write-protect the stored data in the SRAM.| Part No. | M40Z300 |
|---|---|
| Datasheet | M40Z300 Download |
| Manufacturer |  STMicroelectronics |
| Description | NVRAM supervisor |
| Buy | Stock & Price |
FEATURES
● Converts low power SRAM into NVRAMs● Precision power monitoring and power switching circuitry t(s)
● Automatic WRITE-protection when VCC is outof-tolerance c
● Two-input decoder allows control for up to du 8 SRAMs (with 2 devices active in parallel) ro
● Choice of supply voltages and power-fail P deselect voltages: te – M40Z300: le VCC = 4.5 V to 5.5 V THS = VSS: 4.5 V ≤ VPFD ≤ 4.75 V so THS = VOUT: 4.2 V ≤ VPFD ≤ 4.5 V b – M40Z300W: O VCC = 3.0 V to 3.6 V - THS = VSS: 2.8 V ≤ VPFD ≤ 3.0 V t(s) VCC = 2.7 V to 3.3 V THS = VOUT: 2.5 V ≤ VPFD ≤ 2.7 V c
● Reset output (RST) for power on reset du
● Battery low pin (BL) ro
● Less than 12 ns chip enable access P propagation delay (for 5.0 V device) te
● Packaging includes a 28-lead SOIC and le SNAPHAT® top (to be ordered separately), or o A 16-lead SOIC bs
● SOIC package provides direct connection for a O SNAPHAT top which contains the battery 16 1 SO16 (MQ) SNAPHAT (SH) crystal/battery 28 1 SOH28 (MH)
● RoHS compliant – Lead-free second level interconnect October 2010 Doc ID 5679 Rev 5 This is information on a product still in production but not recommended for new designs.
