DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 742

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Table 24.4 Clock Timing
Condition:
Rev.2.00 May. 28, 2009 Page 702 of 732
REJ09B0059-0200
Item
Clock cycle time
Clock high pulse width
Clock low pulse width
Clock rise time
Clock fall time
Reset oscillation
stabilization (crystal)
Software standby
oscillation stabilization time
(crystal)
External clock output
stabilization delay time
V
CC
= 3.0 V to 3.6 V, V
Symbol
t
t
t
t
t
t
t
t
cyc
CH
CL
Cr
Cf
OSC1
OSC2
DEXT
Figure 24.3 System Clock Timing
SS
Min.
50
10
10
⎯
⎯
10
8
500
= 0 V, φ = 5 MHz to 20 MHz
t
CH
t cyc
t
Cf
t
CL
Max.
200
⎯
⎯
8
8
⎯
⎯
⎯
t
Cr
Unit
ns
ms
µs
Reference
Figure 24.3
Figure 24.4
Figure 24.5
Figure 24.4