D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 175
D12312SVF20V
Manufacturer Part Number
D12312SVF20V
Description
IC H8S/2312S MCU ROMLESS 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of D12312SVF20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12312SVF20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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6.1.3
Table 6.1 summarizes the pins of the bus controller.
Table 6.1
Name
Address strobe
Read
High write
Low write
Chip select 0
Chip select 1
Chip select 2
Chip select 3
Chip select 4
Chip select 5
Chip select 6
Chip select 7
Wait
Bus request
Bus request
acknowledge
Bus request output
Pin Configuration
Bus Controller Pins
Symbol
AS
RD
HWR
LWR
CS0
CS1
CS2
CS3
CS4
CS5
CS6
CS7
WAIT
BREQ
BACK
BREQO
I/O
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Output
Output
Function
Strobe signal indicating that address output on
address bus is enabled.
Strobe signal indicating that external space is
being read.
Strobe signal indicating that external space is
to be written, and upper half (D
bus is enabled.
Strobe signal indicating that external space is
to be written, and lower half (D
bus is enabled.
Strobe signal indicating that area 0 is selected.
Strobe signal indicating that area 1 is selected.
Strobe signal indicating that area 2 is selected.
Strobe signal indicating that area 3 is selected.
Strobe signal indicating that area 4 is selected.
Strobe signal indicating that area 5 is selected.
Strobe signal indicating that area 6 is selected.
Strobe signal indicating that area 7 is selected.
Wait request signal when accessing external 3-
state access space.
Request signal that releases bus to external
device.
Acknowledge signal indicating that bus has
been released.
External bus request signal used when internal
bus master accesses external space when
external bus is released.
Rev.7.00 Feb. 14, 2007 page 141 of 1108
Section 6 Bus Controller
REJ09B0089-0700
7
15
to D
to D
0
) of data
8
) of data
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