CLRC63201TSLASH0FE datasheet(150/163 Pages) PHILIPS

150 / 163 page

Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

150

Confidential

22.4 Pin Characteristics

22.4.1 INPUT PIN CHARACTERISTICS

Pins D0 to D7, A0, and A1 have TTL input characteristics and behave as defined in the following table.

SYMBOL

PARAMETER

CONDITIONS

MIN

MAX

UNIT

ILeak

Input Leakage Current

-1.0

+1.0

µA

CMOS: DVDD < 3.6 V

0.35 DVDD

0.65 DVDD

Threshold

TTL: 4.5 < DVDD

0.8

2.0

Table 22-4: Standard Input Pin Characteristics

The digital input pins NCS, NWR, NRD, ALE, A2, and MFIN have Schmitt-Trigger characteristics, and

behave as defined in the following table.

SYMBOL

PARAMETER

CONDITIONS

MIN

MAX

UNIT

ILeak

Input Leakage Current

-1.0

+1.0

µA

TTL: 4.5 < DVDD

1.4

2.0

VT+

Positive-Going Threshold

CMOS: DVDD < 3.6 V

0.65 DVDD

0.75 DVDD

TTL: 4.5 < DVDD

0.8

1.3

VT-

Negative-Going Threshold

CMOS: DVDD < 3.6 V

0.25 DVDD

0.4 DVDD

Table 22-5: Schmitt-Trigger Input Pin Characteristics

Pin RSTPD has Schmitt-Trigger CMOS characteristics. In addition, it is internally filtered with an RC-low-

pass filter, which causes a relevant propagation delay for the reset signal:

SYMBOL

PARAMETER

CONDITIONS

MIN

MAX

UNIT

ILeak

Input Leakage Current

-1.0

+1.0

µA

VT+

Positive-Going Threshold

CMOS: DVDD < 3.6 V

0.65 DVDD

0.75 DVDD

VT-

Negative-Going Threshold

CMOS: DVDD < 3.6 V

0.25 DVDD

0.4 DVDD

tRSTPD,p

Propagation Delay

µs

Table 22-6: RSTPD Input Pin Characteristics

The analog input pin RX has the following input capacitance:

SYMBOL

PARAMETER

CONDITIONS

MIN

MAX

UNIT

CRX

Input Capacitance

Table 22-7: RX Input Capacitance

The analog input pin RX has the following input voltage range:

SYMBOL

PARAMETER

CONDITIONS

MIN

MAX

UNIT

VIN,RX

Dynamical Voltage input range

AVDD=5V, T=25°C

1,1V

4,4

Table 22-8: RX Input voltage range

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