SC68C752B datasheet(35/49 Pages) PHILIPS

35 / 49 page

SC68C752B_3

Product data sheet

Rev. 03 — 29 November 2005

35 of 49

Philips Semiconductors

SC68C752B

5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs

10. Static characteristics

[1]

Meets TTL levels, VIL(min) = 2 V and VIH(max) = 0.8 V on non-hysteresis inputs.

[2]

Applies for external output buffers.

[3]

These parameters apply for D[7:0].

[4]

These parameters apply for DTRA, DTRB, RTSA, RTSB, RXRDYA, RXRDYB, TXRDYA, TXRDYB, TXA, TXB.

[5]

Except XTAL2, VOL = 1 V typical.

[6]

These junction temperatures reﬂect simulated conditions. Absolute maximum junction temperature is 150

°C. The customer is

responsible for verifying junction temperature.

[7]

Applies to external clock; crystal oscillator max. 24 MHz.

[8]

Measurement condition, normal operation other than Sleep mode:

VCC = 3.3 V; Tamb =25 °C. Full duplex serial activity on all two serial (UART) channels at the clock frequency speciﬁed in the

recommended operating conditions with divisor of 1.

Table 26:

Static characteristics

Tolerance of VCC = ± 10 %

Symbol Parameter

Conditions

VCC = 2.5 V

VCC = 3.3 V and 5 V

Unit

Min

Typ

Max

Min

Typ

Max

VCC

supply voltage

VCC − 10 % VCC

VCC +10% VCC − 10 % VCC

VCC +10% V

input voltage

VCC

VIH

HIGH-level input

voltage

[1] 1.6

VCC

2.0

VCC

VIL

LOW-level input

voltage

[1] -

0.65

0.8

output voltage

[2] 0-

VCC

VOH

HIGH-level

output voltage

IOH = −8mA

[3] -

2.0

IOH = −4mA

[4] -

2.0

IOH = −800 µA

[3] 1.85

IOH = −400 µA

[4] 1.85

VOL

LOW-level

output voltage [5]

IOL =8mA

[3] -

0.4

IOL =4mA

[4] -

0.4

IOL =2mA

[3] --

0.4

-V

IOL = 1.6 mA

[4] --

0.4

-V

input

capacitance

Tamb

ambient

temperature

operating

−40

+25

+85

−40

+25

+85

°C

junction

temperature

[6] 0

+25

+125

+25

+125

°C

fXTAL1

frequency on pin

XTAL1

[7] -

MHz

clock duty cycle

ICC

supply current

f = 5 MHz

[8] -

3.5

4.5

ICC(sleep) sleep current

200

µA

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