DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 176

• Manufacturer Part Number: DF3048BVX25V
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: Lead free / RoHS Compliant
• Eeprom Size: -

Section 6 Bus Controller
Pin Auto-Wait Mode: If the WAIT pin is low, the number of wait states (T
WC1 and WC0 are inserted.
In pin auto-wait mode, if the WAIT pin is low at the fall of the system clock ( ) in the T
number of wait states (T
are inserted even if the WAIT pin remains low. Pin auto-wait mode can be used for an easy
interface to low-speed memory, simply by routing the chip select signal to the WAIT pin.
Figure 6.14 shows the timing when the wait count is 1.
Rev. 3.00 Sep 27, 2006 page 148 of 872
REJ09B0325-0300
Read
access
Write
access
Note: * Arrows indicate time of sampling of the
WAIT
Address bus
AS
RD
Data bus
HWR
Data bus
, LWR
W
) selected by bits WC1 and WC0 are inserted. No additional wait states
T
1
Figure 6.14 Pin Auto-Wait Mode
External address
Write data
T
2
*
Read data
WAIT
T
3
pin.
T
1
T
External address
2
*
Write data
T
W
W
) selected by bits
Read data
T
3
2
state, the