UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 750

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

750
Flash
memory
On-chip
debug
function
(
0537D
only)
Electrical
specificat
ions
Function
µ
PD78F
Processing of
X1, P31 pins
Selecting
communication
mode
Security
Settings
E.P.V.
command
usage
Flash memory
programming
by self-
programming
µ
When
OCD0A/X1 and
OCD0B/X2 are
used
µ
Absolute
maximum
ratings
PD78F0537D The
PD78F0537D The
Details of
Function
For products without an on-chip debug function and with the flash memory of 48 KB
or more (
of “I”, “K”, or “E”, and for the product with an on-chip debug function (
connect P31/INTP2/OCD1A and P121/X1/OCD0A as follows when writing the flash
memory with a flash programmer.
• P31/INTP2/OCD1A: Connect to EV
• P121/X1/OCD0A: When using this pin as a port, connect it to V
The above connection is not necessary when writing the flash memory by means of
self programming.
When UART6 is selected, the receive clock is calculated based on the reset
command sent from the dedicated flash programmer after the FLMD0 pulse has been
received.
After the security setting for the batch erase is set, erasure cannot be performed for
the device. In addition, even if a write command is executed, data different from that
which has already been written to the flash memory cannot be written, because the
erase command is disabled.
If a security setting that rewrites boot cluster 0 has been applied, boot cluster 0 of that
device will not be rewritten.
When executing boot swapping, do not use the E.P.V. command with the dedicated
flash memory programmer.
The self-programming function cannot be used when the CPU operates with the
subsystem clock.
Input a high level to the FLMD0 pin during self-programming.
Be sure to execute the DI instruction before starting self-programming.
The self-programming function checks the interrupt request flags (IF0L, IF0H, IF1L,
and IF1H). If an interrupt request is generated, self-programming is stopped.
Self-programming is also stopped by an interrupt request that is not masked even in
the DI status. To prevent this, mask the interrupt by using the interrupt mask flag
registers (MK0L, MK0H, MK1L, and MK1H).
Allocate the entry program for self-programming in the common area of 0000H to
7FFFH.
production because its reliability cannot be guaranteed after the on-chip debug
function has been used, given the issue of the number of times the flash memory can
be rewritten. NEC Electronics does not accept complaints concerning this product.
Input the clock from the OCD0A/X1 pin during on-chip debugging.
Control the OCD0A/X1 and OCD0B/X2 pins by externally pulling down the
OCD1A/P31 pin or by using an external circuit using the P130 pin (that outputs a low
level when the device is reset).
production because its reliability cannot be guaranteed after the on-chip debug
function has been used, given the issue of the number of times the flash memory can
be rewritten. NEC Electronics does not accept complaints concerning this product.
Product quality may suffer if the absolute maximum rating is exceeded even
momentarily for any parameter. That is, the absolute maximum ratings are rated
values at which the product is on the verge of suffering physical damage, and
therefore the product must be used under conditions that ensure that the absolute
maximum ratings are not exceeded.
kΩ: recommended) (in the input mode) or leave it open (in the output mode).
µ
µ
PD78F0537D has an on-chip debug function. Do not use this product for mass
PD78F0537D has an on-chip debug function. Do not use this product for mass
µ
PD78F0534, 78F0535, 78F0536, and 78F0537) and having a product rank
APPENDIX D LIST OF CAUTIONS
User’s Manual U17260EJ6V0UD
SS
Cautions
via a resistor (10 kΩ: recommended).
SS
via a resistor (10
µ
PD78F0537D),
p. 580
p. 582
p. 584
p. 584
pp. 586,
587, 595
p. 588
p. 588
p. 588
p. 588
p. 588
p. 597
p. 597
p. 597
p. 613
pp. 613,
614, 634,
635, 654,
655, 674,
675
Page
(24/25)