D12321VF20V Renesas Electronics America, D12321VF20V Datasheet - Page 811

• 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: -

Table 19.15 PROM Mode Commands
Memory read mode
Auto-program mode
Auto-erase mode
Status read mode
Legend:
RA: Read address
PA: Program address
Notes: 1. In auto-program mode, 129 cycles are required for command writing by a simultaneous
19.11.4 Memory Read Mode
• After the end of an auto-program, auto-erase, or status read operation, the command wait state
• Command writes can be performed in memory read mode, just as in the command wait state.
• Once memory read mode has been entered, consecutive reads can be performed.
• After power-on, memory read mode is entered.
Command Name
is entered. To read memory contents, a transition must be made to memory read mode by
means of a command write before the read is executed.
2. In memory read mode, the number of cycles depends on the number of address write
128-byte write.
cycles (n).
1 + n
129
2
2
Number
of Cycles
Write
Write
Write
Mode
Write
1st Cycle
X
X
X
X
Address Data
Rev.6.00 Sep. 27, 2007 Page 779 of 1268
H'00
H'40
H'20
H'71
Read
Write
Write
Write
Mode
2nd Cycle
RA
PA
X
Address Data
X
REJ09B0220-0600
Section 19 ROM
Dout
Din
H'20
H'71