M56710FP
I/O Circuit
1. LDI, IB1, IB2 input circuit
2. INV input circuit
V
CC2
LDI
IB1
IB2
GND
INV
V
CC2
GND
3. CLS, RDT, RCP output circuit
V
CC2
CLS
RDT
RCP
GND
Pin Function Description
Pin
No.
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin
Name
LDI
F2F
PKO
PKI
AMP
HD2
HD1
VRF
GND
RCP
RDT
CLS
INV
IB2
IB1
CX2
CX1
V
CC2
V
CC1
Name
Read control input
F2F output
Noise filter
Differentiator input
Amplifier output
Amplifier (−) input
Amplifier (+) input
Reference voltage output
Grounding
Read clock output
Read data output
Card travelling signal output
Invert input
Ignore bit 2
Ignore bit 1
Oscillation capacitor
Oscillation capacitor
Power supply
Power supply
Function
Schmidt trigger input. At “L”, reset the internal digital circuit. At “H”,
F2F modulation is possible.
F2F signal output that has amplified, differentiated and further
waveform-shaped the magnetic head signal.
Connect noise removing capacitor CNF between PKI and PKO.
Refer to PKO and AMP.
Connect resistor RPK and capacitor CPK between AMP and PKI.
Connect magnetic head between HD1 and HD2.
Connect magnetic head between HD1 and HD2.
Reference voltage output of V
CC
1/2
Clock pulse output after F2F modulation
Data output after F2F modulation
Signal output indicating that card is travelling
CLS, RDT and RCP output becomes “L” active at “H” (OPEN), and “H”
active at “L”.
Glance-over bit setting pin
Glance-over bit setting pin
Connect capacitor C
OSC
between CX1 and CX2 to set oscillation
frequency.
Connect capacitor C
OSC
between CX1 and CX2 to set oscillation
frequency.
Digital circuit section power supply pin. Supply voltage is V
CC
.
Analog circuit section power supply pin. Supply voltage is V
CC
(same
voltage as V
CC2
).
REJ03F0175-0201 Rev.2.01 Mar 31, 2008
Page 3 of 13
RENESAS [ RENESAS TECHNOLOGY CORP ]
