CLRC632 Datasheet, PDF (150/163 Pages) NXP Semiconductors – Multiple Protocol Contactless Reader IC

Philips Semiconductors
Multiple Protocol Contactless Reader IC
Product Specification Rev. 3.0; May 2003
CL RC632
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
I_Leak
V_T
PARAMETER
Input Leakage Current
Threshold
CONDITIONS
CMOS: DVDD < 3.6 V
TTL: 4.5 < DVDD
MIN
-1.0
0.35 DVDD
0.8
Table 22-4: Standard Input Pin Characteristics
MAX
+1.0
0.65 DVDD
2.0
UNIT
µA
V
V
The digital input pins NCS, NWR, NRD, ALE, A2, and MFIN have Schmitt-Trigger characteristics, and
behave as defined in the following table.
SYMBOL
I_Leak
V_T+
PARAMETER
Input Leakage Current
Positive-Going Threshold
V_T-
Negative-Going Threshold
CONDITIONS
TTL: 4.5 < DVDD
CMOS: DVDD < 3.6 V
TTL: 4.5 < DVDD
CMOS: DVDD < 3.6 V
MIN
-1.0
1.4
0.65 DVDD
0.8
0.25 DVDD
MAX
+1.0
2.0
0.75 DVDD
1.3
0.4 DVDD
UNIT
µA
V
V
V
V
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
I_Leak
V_T+
V_T-
t_RSTPD,p
Input Leakage Current
Positive-Going Threshold
Negative-Going Threshold
Propagation Delay
CMOS: DVDD < 3.6 V
CMOS: DVDD < 3.6 V
-1.0
0.65 DVDD
0.25 DVDD
Table 22-6: RSTPD Input Pin Characteristics
The analog input pin RX has the following input capacitance:
MAX
+1.0
0.75 DVDD
0.4 DVDD
20
UNIT
µA
V
V
µs
SYMBOL
PARAMETER
CONDITIONS
MIN
C_RX
Input Capacitance
Table 22-7: RX Input Capacitance
The analog input pin RX has the following input voltage range:
MAX
15
UNIT
pF
SYMBOL
VI_N,RX
PARAMETER
CONDITIONS
Dynamical Voltage input range
AVDD=5V, T=25°C
Table 22-8: RX Input voltage range
MIN
1,1V
MAX
4,4
UNIT
V
150
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