CLRC632 Datasheet, PDF (152/163 Pages) NXP Semiconductors – Multiple Protocol Contactless Reader IC

Philips Semiconductors
Multiple Protocol Contactless Reader IC
Product Specification Rev. 3.0; May 2003
CL RC632
22.5 AC Electrical Characteristics
22.5.1 AC SYMBOLS
Each timing symbol has five characters. The first character is always 't' for time. The other characters
indicate the name of a signal or the logic state of that signal (depending on position):
Designation:
A
D
W
R
L
C
S
Signal:
address
data
NWR or nWait
NRD or R/NW or nWrite
ALE or AS
NCS
NDS or nDStrb and nAStrb,
SCK
Designation:
H
L
Z
X
V
N
Logic Level:
HIGH
LOW
high impedance
any level or data
any valid signal or data
NSS
Example: t = time for address valid to ALE low
AVLL
152
Confidential