Datasheet

Product data sheet Rev. 04 — 10 February 2009 2 of 28

NXP Semiconductors

PCA9501

8-bit I

C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM

n Low standby current

n Operating power supply voltage range of 2.5 V to 3.6 V

n 5 V tolerant inputs/outputs

n 0 Hz to 400 kHz clock frequency

n ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per

JESD22-A115 and 1000 V CDM per JESD22-C101

n Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

n Packages offered: SO20, TSSOP20, HVQFN20

3. Applications

n Board version tracking and conﬁguration

n Board health monitoring and status reporting

n Multi-card systems in telecom, networking, and base station infrastructure equipment

n Field recall and troubleshooting functions for installed boards

n General-purpose integrated I/O with memory

n Replacement for PCF8574 with integrated 2-kbit EEPROM

n Bus master sees GPIO and EEPROM as two separate devices

n Six hardware address pins allow up to 64 PCA9501s to be located in the same

C-bus/SMBus

4. Ordering information

4.1 Ordering options

Table 1. Ordering information

Type number Package

Name Description Version

PCA9501D SO20 plastic small outline package; 20 leads;

body width 7.5 mm

SOT163-1

PCA9501PW TSSOP20 plastic thin shrink small outline package; 20 leads;

body width 4.4 mm

SOT360-1

PCA9501BS HVQFN20 plastic thermal enhanced very thin quad ﬂat package;

no leads; 20 terminals; body 5 × 5 × 0.85 mm

SOT662-1

Table 2. Ordering options

Type number Topside mark Temperature range

PCA9501D PCA9501D −40 °C to +85 °C

PCA9501PW PCA9501 −40 °C to +85 °C

PCA9501BS 9501 −40 °C to +85 °C