MC33560DTB ON Semiconductor, MC33560DTB Datasheet - Page 12

• Manufacturer Part Number: MC33560DTB
• Description: OC PWR MGMT READERS/CPLR 24TSSOP
• Manufacturer: ON Semiconductor

Specifications of MC33560DTB

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 24-TSSOP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

frequency and to select 3.0 V or 5.0 V CRDV
options. The default power reset condition is state 4 (synchronous clock and CRDV
output variable in programming mode at the positive transition of CS (Figure 20).
NOTE:
consult Table 2 for a description of input and output
signals.The significance of the status message is described
in Table 4.
INTRODUCTION
to provide all necessary functions for safe data transfers
between a microcontroller and a smartcard or memory card.
generates
microcontroller.
between the digital interface and the card interface by the
voltage level translator, and the card clock is matched to the
system clock frequency by the programmable card clock
Table 3. CARD V
The CRDV
The MC33560 status can be polled when CS = L. Please
The MC33560 Smartcard interface IC has been designed
A card detector scans for the presence of a card and
Communication and control signal levels are translated
STATE#
Card clock integrity is maintained during all frequency commutations (no spikes).
State 4 is the default state at power on.
0
1
2
3
4
5
6
7
a
CC
debounced
and ASYCLK programming options allow the system clock frequency to be matched to the card clock
CC
AND CARD CLOCK TRUTH TABLE
PWRON
DC−DC CONVERTER AND CARD DETECTOR STATUS
wake−up
H
H
H
H
L
L
L
L
CARD V
DETAILED OPERATING DESCRIPTION
signal
CC
CC
supply. Table 3 shows the values of PWRON, RESET and I/O for the possible
AND CARD CLOCK PROGRAMMING
RESET
to
H
H
H
H
http://onsemi.com
L
L
L
L
the
MC33560
12
generator. The power management unit enables the DC−DC
converter for card power supply, supervises the
powerup/down sequence of the card’s I/O and signal lines,
and keeps the power consumption very low in standby
mode.
fault monitoring (V
hazard free card reader operation.
same control and data bus, through the use of the chip select
signal CS.
Table 4. RDYMOD STATUS MESSAGES
LOW
LOW
HIGH
HIGH
PWRON
I/O
All card interface pins have adequate ESD protection, and
Several MC33560s can be operated in parallel, using the
H
H
H
H
(Input)
L
L
L
L
LOW
HIGH
LOW
HIGH
RDYMOD
(Output)
CC
=5.0 V). All states are latched for each
CRDV
BATlow
3 V
3 V
3 V
3 V
5 V
5 V
5 V
5V
CC
, V
DC−DC converter overload
DC−DC converter OK
CClow
Card present
Message
, I
No card
CClim
ASYCLKIN/4
ASYCLKIN/2
ASYCLKIN/4
ASYCLKIN/2
ASYCLKIN
ASYCLKIN
CRDCLK
SYNCLK
SYNCLK
) guarantees