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Part Number Description Max frequency (kHz) I2C Adress Vcc Range(V) Interrupt Output type max I/O voltage tolerance Number of I/Os Standby Current Max Output device current Default POR Output State Hardware Reset input Configuration Registers I/O Pull-Up Number of Device Address Pin/Package














































AT9555 TSSOP24 QFN24
AT9554A 400 0111xxx 2.3~5.5 √ Totem-Pole 5.5V 8 0.25μA 10mA Hi-Z Input — √ 100kΩ 8 TSSOP16 QFN16 SOP16(W)
AT9554 400 0100xxx 2.3~5.5 √ Totem-Pole 5.5V 8 0.25μA 10mA Hi-Z Input — √ 100kΩ 8 TSSOP16 QFN16 SOP16(W)
AT9557 400 2.3~5.5 — Open-Drain 5.5V 8 0.25μA 10mA Hi-Z Input √ √ — TSSOP16 QFN16
AT1116 400 11101xx 2.3~5.5 — Totem-Pole 5.5V 16 0.25μA 10mA Hi-Z Input √ √ — 4 TSSOP24 QFN24
AT8574 100 0100xxx 2.3~5.5 √ Quasi-Output 5.5V 8 2.5μA 25mA Hi-Z Input — — Weak PU 8 SOP16L SOP16L(W)
AT8574A 100 0111xxx 2.3~5.5 √ Quasi-Output 5.5V 8 2.5μA 25mA Hi-Z Input — — Weak PU 8 SOP16L
AT8575 400 0100xxx 2.3~5.5 √ Quasi-Output 5.5V 16 2.5μA 25mA Hi-Z Input — — Weak PU 8 TSSOP24 QFN24
AT8575C 400 0100xxx 2.3~5.5 √ Quasi-Output 5.5V 16 2.5μA 25mA Hi-Z Input — — Weak PU 8 TSSOP24 QFN24
AT9530 400 1100xxx 2.3~5.5 — Open-Drain 5.5V 2 1.9μA 25mA Hi-Z Input √ √ — 2 SOP8 MSOP8
AT9531 400 1100xxx 2.3~5.5 — Open-Drain 5.5V 8 1.9μA 25mA Hi-Z Input √ √ — 8 TSSOP16 QFN16
AT9532 400 1100xxx 2.3~5.5 — Open-Drain 5.5V 16 2.1μA 25mA Hi-Z Input √ √ — 8 TSSOP24 QFN24
AT9533 400 1100010 1100011 2.3~5.5 — Open-Drain 5.5V 4 1.9μA 25mA Hi-Z Input — √ — 1 SOP8 MSOP8
AT9534 400 2.3~5.5 — Open-Drain 5.5V 8 0.25μA 25mA — √ √ — SO16
AT9535 400 2.3~5.5 — Open-Drain 5.5V 16 0.25μA 25mA — √ √ — SO24
AT9539 400 11101xx 2.3~5.5 — Totem-Pole 5.5V 16 0.25μA 10mA Hi-Z Input √ √ — 4 TSSOP24 QFN24
AT9550 400 1100xxx 2.3~5.5 — Open-Drain 5.5V 2 1.9μA 25mA Hi-Z Input √ √ — 2 SOP8 MSOP8
AT9551 400 1100xxx 2.3~5.5 — Open-Drain 5.5V 8 1.9μA 25mA Hi-Z Input √ √ — 8 TSSOP16 QFN16
AT9552 400 1100xxx 2.3~5.5 — Open-Drain 5.5V 16 2.1μA 25mA Hi-Z Input √ √ — 8 TSSOP24 QFN24
AT9553 400 1100010 1100011 2.3~5.5 — Open-Drain 5.5V 4 1.9μA 25mA — √ — 1 SOP8 MSOP8
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