DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 155

MCU 5V 128K 100-TQFP

DF2345TE20

Manufacturer Part Number
DF2345TE20
Description
MCU 5V 128K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet

Specifications of DF2345TE20

Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
71
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 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
-
Other names
HD64F2345TE20
HD64F2345TE20

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DF2345TE20V
Manufacturer:
Renesas
Quantity:
222
Part Number:
DF2345TE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
6.1
The H8S/2345 Group has a built-in bus controller (BSC) that manages the external address space
divided into eight areas. The bus specifications, such as bus width and number of access states,
can be set independently for each area, enabling multiple memories to be connected easily.
The bus controller also has a bus arbitration function, and controls the operation of the internal bus
masters: the CPU and data transfer controller (DTC).
6.1.1
The features of the bus controller are listed below.
Note: * ZTAT, mask ROM, and ROMless versions only.
Manages external address space in area units
Basic bus interface
Burst ROM interface
Idle cycle insertion
Bus arbitration function
Other features
In advanced mode, manages the external space as 8 areas of 2-Mbytes
In normal mode * , manages the external space as a single area
Bus specifications can be set independently for each area
Chip select (CS0 to CS3) can be output for areas 0 to 3
8-bit access or 16-bit access can be selected for each area
2-state access or 3-state access can be selected for each area
Program wait states can be inserted for each area
Burst ROM interface can be set for area 0
Choice of 1- or 2-state burst access
An idle cycle can be inserted in case of an external read cycle between different areas
An idle cycle can be inserted in case of an external write cycle immediately after an
external read cycle
Includes a bus arbiter that arbitrates bus mastership among the CPU and DTC
External bus release function
Features
Overview
Section 6 Bus Controller
Rev. 4.00 Feb 15, 2006 page 129 of 900
Section 6 Bus Controller
REJ09B0291-0400

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