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Contents

README

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X5323S8IZ-2.7A

RENESAS · Monitors & Reset Circuits · SOIC-8

X5323S8IZ-2.7A from RENESAS, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CS/WDI input Chip select input where CS LOW enables the device and HIGH deselects it, doubling as the watchdog input where a HIGH to LOW transition restarts the watchdog timer.
2 SO output Push/pull serial data output that shifts data out on read cycles, clocked by the falling edge of SCK, and is high impedance when CS is HIGH.
3 WP input Write protect input that works with the nonvolatile WPEN bit to lock the watchdog timer control and memory write protect bits.
4 VSS power_in Ground reference for the device.
5 SI input Serial data input where opcodes, byte addresses and memory data are latched on the rising edge of SCK, MSB first.
6 SCK input Serial clock that latches SI data on its rising edge and changes SO data on its falling edge, with a maximum clock frequency of 2 MHz.
7 RESET/RESET output Open drain reset output that goes active when VCC falls below the minimum VCC sense level and stays active until VCC rises above it for 200ms.
8 VCC power_in Supply voltage of 2.7V to 5.5V for this part.

Key specifications

Parameter Value
Manufacturer RENESAS
Package SOIC-8
Category Power Supply Chip
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reset Trip Point Voltage, X5323-2.7A, X5325-2.7A VTRIP 2.85 2.92 3 V 13
VCC Write Current (active) ICC1 5 mA SCK = VCC x 0.1/VCC x 0.9 @ 2MHz, SO = Open 10
VCC Read Current (active) ICC2 0.4 mA SCK = VCC x 0.1/VCC x 0.9 @ 2MHz, SO = Open 10
VCC Standby Current WDT = OFF ISB1 1 µA CS = VCC, VIN = VSS or VCC, VCC = 5.5V 10
VCC Standby Current WDT = ON ISB2 50 µA CS = VCC, VIN = VSS or VCC, VCC = 5.5V 10
VCC Standby Current WDT = ON ISB3 20 µA CS = VCC, VIN = VSS or VCC, VCC =3.6V 10
Input Leakage Current ILI 0.1 10 µA VIN = VSS to VCC 10
Output Leakage Current ILO 0.1 10 µA VOUT = VSS to VCC 10
Input LOW Voltage VIL -0.5 V (Note 1) 10
Output LOW Voltage VOL1 0.4 V VCC > 3.3V, IOL = 2.1mA 10
Reset Output LOW Voltage VOLS 0.4 V IOL = 1mA 10
Output Capacitance (SO, RESET/RESET) COUT 8 pF VOUT = 0V 10
Input Capacitance (SCK, SI, CS, WP) CIN 6 pF VIN = 0V 10
VTRIP Hysteresis (HIGH to LOW vs LOW to HIGH VTRIP Voltage) VTH 20 mV 13
Supply Voltage Range VCC 2.7 5.5 V 10
Temperature Range (Industrial) -40 85 °C 10
Voltage on any Pin with Respect to VSS -1 7 V 10
DC Output Current 5 mA 10
Storage Temperature -65 150 °C 10
Temperature Under Bias -65 135 °C 10
Clock Frequency (serial input) fSCK 0 2 MHz 2.7 TO 5.5V 11
Cycle Time tCYC 500 ns 2.7 TO 5.5V 11
CS Lead Time tLEAD 250 ns 2.7 TO 5.5V 11
CS Lag Time tLAG 250 ns 2.7 TO 5.5V 11
Clock HIGH Time tWH 200 ns 2.7 TO 5.5V 11
Clock LOW Time tWL 250 ns 2.7 TO 5.5V 11
Data Set-up Time tSU 50 ns 2.7 TO 5.5V 11
Data Hold Time tH 50 ns 2.7 TO 5.5V 11
Input Rise Time tRI 100 ns 2.7 TO 5.5V, Note 3 11
Input Fall Time tFI 100 ns 2.7 TO 5.5V, Note 3 11
CS Deselect Time tCS 500 ns 2.7 TO 5.5V 11
Write Cycle Time tWC 10 ms Note 4 11
Output Disable Time tDIS 250 ns 2.7 TO 5.5V 12
Output Valid From Clock Low tV 250 ns 2.7 TO 5.5V 12
Output Hold Time tHO 0 ns 2.7 TO 5.5V 12
Output Rise Time tRO 100 ns 2.7 TO 5.5V, Note 3 12
Output Fall Time tFO 100 ns 2.7 TO 5.5V, Note 3 12
Power-up Reset Time-Out tPURST 100 200 280 ms 13
VCC Detect To Reset/Output tRPD 500 ns Note 5 13
VCC Fall Time tF 100 µs Note 5 13
VCC Rise Time tR 100 µs Note 5 13
Watchdog Time-Out Period tWDO 100 200 300 ms WD1 = 1, WD0 = 0 13
Watchdog Time-Out Period tWDO 450 600 800 ms WD1 = 0, WD0 = 1 13
Watchdog Time-Out Period tWDO 1 1.4 2 s WD1 = 0, WD0 = 0 13
Reset Time-Out tRST 100 200 300 ms 13
VP Programming Voltage VP 15 18 V 15
VTRIP Programed Voltage Range VTRAN 1.7 5 V 15
Initial VTRIP Program Voltage Accuracy (VCC Applied-VTRIP) Vta1 -0.1 0.4 V Programmed at +25°C 15
Subsequent VTRIP Program Voltage Accuracy [(VCC Applied-Vta1)-VTRIP] Vta2 -25 25 mV Programmed at +25°C 15
VTRIP Program Voltage Repeatability Vtr -25 25 mV Successive Program Operations; Programmed at +25°C 15
VTRIP Program Variation After Programming Vtv -25 25 mV 0°C to +75°C; Programmed at +25°C 15

CAD (KiCad official)

  • Symbol: X5323S8IZ-2.7A
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: x5323s8iz-2-7a-etched.step / x5323s8iz-2-7a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); x5323s8iz-2-7a.step / x5323s8iz-2-7a.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: RENESAS datasheet (19 pp, sha256 0edda782d5b4b614, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF