HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 190

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 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: -

Section 6 Bus Controller
BRCR Write Timing: Data written to BRCR to switch between A
, A
, A
, or A
output and
23
22
21
20
generic input or output takes effect starting from the T
state of the BRCR write cycle. Figure
3
6.23 shows the timing when a pin is changed from generic input to A
, A
, A
, or A
output.
23
22
21
20
T
T
T
1
2
3
Address bus
BRCR address
PA
to PA
7
4
( A
to A
High-impedance
)
23
20
Figure 6.23 BRCR Write Timing
6.7.2
Pin Input Timing
B R E Q
After driving the
pin low, hold it low until
goes low. If
returns to the high
B R E Q
B A C K
B R E Q
level before
goes lows, the bus arbiter may operate incorrectly.
B A C K
To terminate the external-bus-released state, hold the
signal high for at least three states. If
B R E Q
is high for too short an interval, the bus arbiter may operate incorrectly.
B R E Q
Rev. 2.00 Sep 20, 2005 page 150 of 800
REJ09B0260-0200