DF2148BFA20 Renesas Electronics America, DF2148BFA20 Datasheet - Page 407
DF2148BFA20
Manufacturer Part Number
DF2148BFA20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148BFA20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2148BFA20
HD64F2148BFA20
HD64F2148BFA20
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- Current page: 407 of 847
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Notes: 1. Only 0 can be written, to clear the flag.
Bit
2
1
0
Bit Name Initial Value R/W
CKS2
CKS1
CKS0
2. When OVF is polled with the interval timer interrupt disabled, OVF = 1 must be read at
least twice.
0
0
0
R/W
R/W
R/W
Description
Clock Select 2 to 0
Selects the clock source to be input to TCNT. The
overflow cycle for
enclosed in parentheses.
When PSS = 0:
000: /2 (frequency: 51.2 s)
001: /64 (frequency: 1.64 ms)
010: /128 (frequency: 3.28 ms)
011: /512 (frequency: 13.1 ms)
100: /2048 (frequency: 52.4 ms)
101: /8192 (frequency: 209.7 ms)
110: /32768 (frequency: 0.84 s)
111: /131072 (frequency: 3.36 s)
When PSS = 1:
000: SUB/2 (cycle: 15.6 ms)
001: SUB/4 (cycle: 31.3 ms)
010: SUB/8 (cycle: 62.5 ms)
011: SUB/16 (cycle: 125 ms)
100: SUB/32 (cycle: 250 ms)
101: SUB/64 (cycle: 500 ms)
110: SUB/128 (cycle: 1 s)
111: SUB/256 (cycle: 2 s)
Rev. 3.00 Mar 21, 2006 page 351 of 788
= 10 MHz and SUB = 32.768 kHz is
Section 14 Watchdog Timer (WDT)
REJ09B0300-0300
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