Renesas rl78 User Manual

Page of 1004
 
RL78/G1A 
CHAPTER  30   ELECTRICAL  SPECIFICATIONS  (G:  INDUSTRIAL  APPLICATIONS  T
A
  =  
−40  to  +105°C) 
R01UH0305EJ0200  Rev.2.00 
 
 
950  
Jul 04, 2013 
30.7  Data Memory STOP Mode Low Supply Voltage Data Retention Characteristics 
 
(T
A
 = 
40 to +105°C, V
SS
 = 0 V) 
Parameter Symbol 
Conditions 
MIN. 
TYP. 
MAX.
Unit 
Data retention supply voltage 
V
DDDR
  
1.44
Note
   3.6  V 
 
Note  The value depends on the POR detection voltage.  When the voltage drops, the data is retained before a POR 
reset is effected, but data is not retained when a POR reset is effected. 
 
V
DD
STOP instruction execution
Standby release signal
(inerrupt request)
STOP mode
Data hold mode
V
DDDR
Operation mode
 
 
30.8  Flash Memory Programming Characteristics 
 
(T
A
 = 
40 to +105°C, 2.4 V  V
DD
 
 3.6 V, V
SS
 = 0 V) 
Parameter Symbol  Conditions 
MIN. 
TYP. 
MAX. 
Unit
CPU/peripheral hardware clock 
frequency 
f
CLK
 2.4 
≤ V
DD
 
≤ 3.6 V 
 
32 
MHz
Number of code flash rewrites
Notes 1, 2, 3 
 
Retained for 20 years 
T
A
 = 85
°C 1,000   
 
Retained for 1 years 
T
A
 = 25
°C 
 1,000,000  
Retained for 5 years 
T
A
 = 85
°C 100,000
 
 
Number of data flash rewrites
Notes 1, 2, 3
 
C
erwr
 
Retained for 20 years 
T
A
 = 85
°C 10,000
 
 
Times
 
Notes 1.  1 erase + 1 write after the erase is regarded as 1 rewrite. 
The retaining years are until next rewrite after the rewrite. 
 
2.  When using flash memory programmer and Renesas Electronics self programming library 
 
3.  These are the characteristics of the flash memory and the results obtained from reliability testing by Renesas 
Electronics Corporation. 
 
30.9  Dedicated Flash Memory Programmer Communication (UART) 
 
(T
A
 = 
40 to +105°C, 2.4 V  EV
DD0
 
 V
DD
 
 3.6 V, V
SS
 = EV
SS0
 = 0 V) 
Parameter Symbol 
Conditions 
MIN. 
TYP. 
MAX.
Unit 
Transfer rate 
 
During flash memory programming 
115.2 k 
 
1 M 
bps 
 
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