D12321VF20V Renesas Electronics America, D12321VF20V Datasheet - Page 825
D12321VF20V
Manufacturer Part Number
D12321VF20V
Description
IC H8S/2321 MCU ROMLESS 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of D12321VF20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
86
Program Memory Type
ROMless
Ram Size
4K 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
128-QFP
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:
D12321VF20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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19.13.3 Flash Memory Operating Modes
Mode Transitions: When the mode pins and the FWE pin are set in the reset state and a reset-
start is executed, the chip enters one of the operating modes shown in figure 19.30. In user mode,
flash memory can be read but not programmed or erased.
Flash memory can be programmed and erased in boot mode, user program mode, and PROM
mode.
Notes: Only make a transition between user mode and user program mode when the CPU is
FWE = 1,
SWE = 1
(on-chip ROM
User mode
enabled)
not accessing the flash memory.
* MD0 = 0, MD1 = 0, MD2 = 0, P66 = 1, P65 = 0, P64 = 0
On-board programming mode
program mode
FWE = 0
or SWE = 0
User
Figure 19.30 Flash Memory Mode Transitions
MD1 = 1,
MD2 = 1,
FWE = 0
RES = 0
RES = 0
FWE = 1,
MD1 = 1,
MD2 = 0
Reset state
Boot mode
Rev.6.00 Sep. 27, 2007 Page 793 of 1268
RES = 0
*
RES = 0
REJ09B0220-0600
PROM mode
Section 19 ROM
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