PCA9621

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© NXP B.V. 2011. All rights reserved.

Product data sheet

Rev. 1 — 9 March 2011

8 of 18

NXP Semiconductors

PCA9621

65 mA 8-bit 2-wire bus output port

[1]

Supply voltage dependent; refer to graphs (Figure 8 through Figure 10) for typical trend.

[2]

Guaranteed by design, not subject to test.

[3]

Time between STOP condition and output port (P0 to P7) being asserted.

Fig 8.

Typical SDA LOW-level output voltage versus

pull-up resistance

Fig 9.

Typical SDA LOW-level output voltage versus

ambient temperature

Fig 10. Typical output port (P0 to P7) LOW-level output voltage versus LOW-level output sink current

100

150

50

200

250

(mV)

0

0

1000

800

400

600

200

002aaf372

2.7 V

100

300

400

(mV)

0

−50

150

100

050

002aaf373

200

5.5 V

50

150

250

(mV)

0

080

60

20

40

002aaf389

200

100