UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 793
UPD78F0552MA-FAA-AX
Manufacturer Part Number
UPD78F0552MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0551MA-FAA-AX.pdf
(822 pages)
Specifications of UPD78F0552MA-FAA-AX
Core Processor
78K/0
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
9
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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78K0/Kx2-L
31.2 Peripheral Hardware That Generates Wait
Caution When the peripheral hardware clock (f
Remark The clock is the CPU clock (f
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Table 31-1 lists the registers that issue a wait request when accessed by the CPU, and the number of CPU wait clocks.
Serial interface
UART6
Serial interface
IICA
A/D converter
Peripheral
Hardware
access method in which a wait request is issued.
Table 31-1. Registers That Generate Wait and Number of CPU Wait Clocks
ASIS6
IICAS0
ADM0
ADS
ADPC0, ADPC1
ADCR, ADCRH
The above number of clocks is when the same source clock is selected for f
clocks can be calculated by the following expression and under the following conditions.
<Calculating number of wait clocks>
• Number of wait clocks =
<Conditions for maximum/minimum number of wait clocks>
• Maximum number of times: Maximum speed of CPU (f
• Minimum number of times: Minimum speed of CPU (f
* Fraction is truncated if the number of wait clocks ≤ 0.5 and rounded up if the number of wait clocks > 0.5.
f
f
f
f
AD
CPU
PRS
XP
:
:
: CPU clock frequency
: Peripheral hardware clock frequency
Register
A/D conversion clock frequency (f
Main system clock frequency
CPU
).
2 f
f
AD
Read
Read
Write
Write
Write
Read
CPU
+ 1
PRS
) is stopped, do not access the registers listed above using an
Access
PRS
to f
PRS
/12)
SUB
XP
), highest speed of A/D conversion clock (f
), lowest speed of A/D conversion clock (f
1 clock (fixed)
1 clock (fixed)
1 to 5 clocks (when f
1 to 7 clocks (when f
1 to 9 clocks (when f
2 to 13 clocks (when f
2 to 17 clocks (when f
2 to 25 clocks (when f
CHAPTER 31 CAUTIONS FOR WAIT
Number of Wait Clocks
CPU
and f
AD
AD
AD
AD
AD
AD
= f
= f
= f
= f
= f
= f
PRS
PRS
PRS
PRS
PRS
PRS
PRS
. The number of wait
/2 is selected)
/3 is selected)
/4 is selected)
/6 is selected)
/8 is selected)
/12 is selected)
PRS
PRS
/12)
)
779
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