mc33560 ON Semiconductor, mc33560 Datasheet - Page 11
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mc33560
Manufacturer Part Number
mc33560
Description
Power Management And Interface Ic For Smartcard Readers And Couplers
Manufacturer
ON Semiconductor
Datasheet
1.MC33560.pdf
(26 pages)
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mode; Table 2 shows which pins are used to access the various functions.
Table 1. PIN FUNCTION DESCRIPTION
CARD INTERFACE
CURRENT LIMIT AND THERMAL PROTECTION
Table 2. PIN USE FOR PROGRAMMING AND STATUS FUNCTIONS
RDYMOD
(In/Out)
CS (In)
PWRON
RESET(In)
I/O(In)
Pin
19
12
13
22
23
24
The MC33560 features a programming interface and a status interface. Figure 20 shows how to enter and exit programming
1
CRDC8
PGND
CRDGND
CRDV
L1
V
ILIM
BAT
Symbol
CC
Programs CRDV-
Input/Divide Ratio
Input/Divide Ratio
Programs CLK
Programs CLK
TO 3 V/5 V
rising edge
Force to 0
RDYMOD (in)
I/O
POWER
POWER
POWER
POWER
POWER
POWER
0/1
CC
PWRON
RESET
Type
CS
IO
NOT USED
NOT USED
Select V
PROGRAMMING AND STATUS FUNCTIONS
ON/OFF
Figure 20. MC33560 Programming Sequence
READ
General purpose input/output. It has the same behavior as CRDIO. It can be connected to the
C8 pin of the card connector.
This pin is the return path for the current flowing into Pin 22 (L1). It must be connected to
CRDGND using appropriate grounding techniques.
This pin is the signal ground. It must be connected to the ground pin of the card connector. It is
the reference level for all analog and digital signals.
This pin connects to the V
Pins 11, 14, 15, 16 and 19.
This pin connects to an external inductance for the DC−DC converter. Please refer to the
description of the DC−DC converter functional block.
This pin is connected to the supply voltage. Logic level “1” of Pins 2 to 10, 17, 18, 20 and 21 is
referenced to V
minimum value.
This pin can be connected to the PGND pin, or to a resistor connected to PGND, or left open,
depending on the peak coil current needed to supply the card.
0/1
PROGRAMMING
0
CC
ENTER
MODE
Programs CRDV
http://onsemi.com
BAT
Clock Input
rising edge
Force to 0
PROGRAM DATA VALUE
PROGRAM DATA VALUE
PROGRAM DATA VALUE
Select
. Operation of the MC33560 is inhibited when V
MC33560
0/1
0/1
11
CC
CC
pin of the card connector. It is the reference level for a logic “1” of
Program ASYCLKIN
Programs CRDV
Name/Function
Divide Ratio
PROGRAM
rising edge
Force to 0
LATCH
VALUE
0/1
0/1
PROGRAMMING
CC
MODE
EXIT
NOT USED
NOT USED
Poll Card
0 or Hi−z
Status
READ
BAT
0
is lower than the
Poll CRDV
NOT USED
NOT USED
Status
READ
0
1
CC