DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 693

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• 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-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148BTE20; HD64F2148BTE20

Table 24.4 External Clock Output Stabilization Delay Time
Conditions: V
Note:
24.2
The duty correction circuit is valid when the oscillating frequency is 5 MHz or more. It corrects
the duty of a clock that is output from the oscillator, and generates the system clock ( ).
24.3
The medium-speed clock divider divides the system clock ( ), and generates /2, /4, /8, /16,
and /32 clocks.
Item
External clock output stabilization
delay time
* t
Note: * The external clock output stabilization delay time (t
V
STBY
EXTAL
(Internal and external)
RES
CC
Duty Correction Circuit
Medium-Speed Clock Divider
Figure 24.6 Timing of External Clock Output Stabilization Delay Time
DEXT
2.7 V
CC
V
includes a RES pulse width (t
IH
= 2.7 V to 5.5 V, AV
CC
Symbol
t
= 2.7 V to 5.5 V, V
DEXT
*
RESW
t
DEXT
).
*
Min.
500
DEXT
) includes a RES pulse width (t
Rev. 3.00 Mar 21, 2006 page 637 of 788
SS
= AV
Max.
—
Section 24 Clock Pulse Generator
SS
= 0 V
Unit
s
REJ09B0300-0300
RESW
Remarks
Figure 24.6
).