DIO74506

Version 1.0, May 2026

www.dioo.com

© 2026 Dioo Microcircuits Co., Ltd. Jiangsu

5

5. Electrical Characteristics

5.1. Static characteristics

TA = -40°C to 85°C, VCCA = 1.1 V to 1.95 V, VCCB = 1.7 V to 3.6 V. Typical values are at TA = 25°C, unless

otherwise noted.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Automatic enable feature: VCCB

VEN

Device enable voltage

level

VCCA ≥ 1.0 V; VCCB rising edge

0.9

1.2

1.55

V

VDIS

Device disable voltage

level

VCCA ≥ 1.0 V; VCCB falling edge

0.65

0.95

1.3

V

Host-side input signals: CMDA, DAT0A to DAT3A and CLKA

VIH

High-level input voltage 1.1 V ≤ VCCA ≤ 1.95 V

0.65 × VCCA

VCCA + 0.3

V

VIL

Low-level input voltage 1.7 V ≤ VCCA ≤ 1.95 V

−0.3

0.35 × VCCA

V

II

Input leakage current

VCCA = 1.95 V; VI = 0 V to 1.95 V

1

μA

Host-side output signals: CMDA and DAT0A to DAT3A

VOH

High-level output voltage

IO = -2 µA; VI = VIH (card side),

1.1 V ≤ VCCA ≤ 1.95 V

0.8 × VCCA

VCCA + 0.3

V

VOL

Low-level output voltage

IO = 2 mA; VI = VIL (card side),

1.1 V ≤ VCCA ≤ 1.95 V

-0.3

0.15 × VCCA

V

Host-side output signals: CLKFB

VOH

High-level output voltage

IO = -2 mA; VI = VIH (card side),

1.1 V ≤ VCCA ≤ 1.95 V

0.8 × VCCA

VCCA + 0.3

V

VOL

Low-level output voltage

IO = 2 mA; VI = VIL (host side),

1.1 V ≤ VCCA ≤ 1.95 V

-0.3

0.15 × VCCA

V

Card-side input signals: CMDB and DAT0B to DAT3B

VIH

Level input voltage

1.7 V ≤ VCCB ≤ 3.6 V

0.625 × VCCB

VCCB + 0.3

V

VIL

Low-level input voltage

1.7 V ≤ VCCB ≤ 1.95 V

−0.3

0.35 × VCCB

V

2.7 V ≤ VCCB ≤ 3.6 V

−0.3

0.3 × VCCB

V

Card-side output signal: CMDB, DAT0B to DAT3B and CLKB

VOH

High-level output voltage

VCCB = 1.7 V; IO = -2 mA;

VI = VIH (host side)

0.85 × VCCB

VCCB + 0.3

V

VCCB = 2.7 V; IO = -4 mA;

VI = VIH (host side)

0.85 × VCCB

VCCB + 0.3

V

VCCB = 1.7 V; IO = -2 μA;

VI = VIH (host side)

0.85 × VCCB

VCCB + 0.3

V

VOL

Low-level output voltage

IO = 2 mA; VI = VIL (host side);

VCCB = 1.7 V

0.125 × VCCB