DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 348

• 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: -

Notes: 1. Includes switching from low to stop, and from stop to low.
11.9.6
If 16-bit count mode and compare-match count mode are set simultaneously, the input clock
pulses for TCNT0 and TCNT1 (or TCNTY and TCNTX) are not generated, and thus the counters
will stop operating. Simultaneous setting of these two modes should therefore be avoided.
Rev.2.00 May. 28, 2009 Page 308 of 732
REJ09B0059-0200
No.
4
Timing of Switchover
by Means of CKS1
and CKS0 Bits
Clock switching from high
to high level
2. Includes switching from stop to high.
3. Includes switching from high to stop.
4. Generated on the assumption that the switchover is a falling edge; TCNT is
Mode Setting with Cascaded Connection
incremented.
TCNT Clock Operation
Clock before
switchover
Clock after
switchover
TCNT
clock
TCNT
N
N + 1
CKS bit rewrite
N + 2