4513_03 Datasheet, PDF (71/210 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCOMPUTER

HARDWARE
FUNCTION BLOCK OPERATIONS/ROM ORDERING METHOD
Clock signal f(XIN) is obtained by externally connecting a ceramic
resonator.
Connect this external circuit to pins XIN and XOUT at the shortest
distance. A feedback resistor is built in between pins XIN and XOUT.
When an external clock signal is input, connect the clock source to
XIN and leave XOUT open. When using an external clock, the maxi-
mum value of external clock oscillating frequency is shown in Table
24.
4513/4514
Note: Externally connect a
damping resistor Rd de-
XIN
XOUT
pending on the oscillation
frequency.
(A feedback resistor is
Rd
built-in.)
Use the resonator manu-
facturer’s recommended
CIN
COUT
value because constants
such as capacitance de-
pend on the resonator.
Fig. 42 Ceramic resonator external circuit
4513/4514
XIN
XOUT VDD
VSS
External oscillation circuit
Fig. 43 External clock input circuit
Table 24 Maximum value of external clock oscillation frequency
Mask ROM version
One Time PROM version
Middle-speed mode
High-speed mode
Middle-speed mode
High-speed mode
Supply voltage
VDD = 2.0 V to 5.5 V
VDD = 4.0 V to 5.5 V
VDD = 2.5 V to 5.5 V
VDD = 2.0 V to 5.5 V
VDD = 2.5 V to 5.5 V
VDD = 4.0 V to 5.5 V
VDD = 2.5 V to 5.5 V
ROM ORDERING METHOD
Please submit the information described below when ordering
Mask ROM.
(1) Mask ROM Order Confirmation Form ..................................... 1
(2) Data to be written into mask ROM ............................... EPROM
(three sets containing the identical data)
(3) Mark Specification Form .......................................................... 1
Oscillation frequency (duty ratio)
3.0 MHz (40 % to 60 %)
3.0 MHz (40 % to 60 %)
1.0 MHz (40 % to 60 %)
0.8 MHz (40 % to 60 %)
3.0 MHz (40 % to 60 %)
3.0 MHz (40 % to 60 %)
1.0 MHz (40 % to 60 %)
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4513/4514 Group User’s Manual