EZ80F91NA050SC Zilog, EZ80F91NA050SC Datasheet - Page 128
EZ80F91NA050SC
Manufacturer Part Number
EZ80F91NA050SC
Description
IC ACCLAIM MCU 256KB 144-BGA
Manufacturer
Zilog
Series
eZ80® Acclaim!®r
Specifications of EZ80F91NA050SC
Core Processor
Z8
Core Size
8-Bit
Speed
50MHz
Connectivity
Ethernet, I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
144-LBGA
Data Bus Width
8 bit
Maximum Clock Frequency
50 MHz
Data Ram Size
16 KB
Number Of Programmable I/os
32
Number Of Timers
16 Bit
Operating Supply Voltage
3 V to 3.6 V
Mounting Style
SMD/SMT
Height
1.5 mm
Length
13 mm
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Width
13 mm
For Use With
269-4712 - KIT DEV ENCORE 32 SERIES269-4671 - BOARD ZDOTS SBC Z80ACCLAIM PLUS269-4561 - KIT DEV FOR EZ80F91 W/C-COMPILER269-4560 - KIT DEV FOR EZ80F91 W/C-COMPILER
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
No RoHS Version Available
Other names
269-3251
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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PS019215-0910
Watchdog Timer Reset Register
The WDT Reset register (see
when an
occurs between the writing of
does not occur prior to completion. Any value other than
register after the
the timer to be reset.
Table 49. Watchdog Timer Reset Register
Bit
Reset
CPU Access
Note: X = Undefined; W = Write Only.
Bit
Position
[7:0]
WDT_RR
A5h
value followed by a
A5h
Value Description
A5h
5Ah
value requires that the sequence of Writes (
The first Write value required to reset the WDT prior to a time-
out.
The second Write value required to reset the WDT prior to a
time-out. If an A5h, 5Ah sequence is written to WDT_RR, the
WDT timer is reset to its initial count value and counting
resumes.
W
X
7
Table
A5h
5Ah
value and the
W
49) is an 8-bit Write only register. The WDT is reset
X
6
value is written to this register. Any amount of time
W
X
5
5Ah
(WDT_RR = 0094h)
W
X
4
value, so long as the WDT time-out
5Ah
W
X
3
written to the WDT Reset
A5h
Product Specification
,
W
X
5Ah
2
) be restarted for
eZ80F91 MCU
Watchdog Timer
W
X
1
W
X
0
119
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