EZ80F91AZ050EG Zilog, EZ80F91AZ050EG Datasheet - Page 127

• Manufacturer Part Number: EZ80F91AZ050EG
• Description: IC ACCLAIM MCU 256KB 144LQFP
• Manufacturer: Zilog
• Series: eZ80® Acclaim!®r

Specifications of EZ80F91AZ050EG

• 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: -40°C ~ 105°C
• Package / Case: 144-LQFP
• Processor Series: EZ80F91x
• Core: eZ80
• Data Bus Width: 8 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, IrDA, SPI, UART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: eZ80F910300ZCOG
• Minimum Operating Temperature: - 40 C
• 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: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 269-3867; EZ80F91AZ050EG

PS019215-0910
Bit
Position
[3:2]
WDT_CLK
[1:0]
WDT_PERIOD
Note: When the WDT is enabled, no Writes are allowed to the WDT_CTL register.
Value Description
00
01
10
11
00
01
10
11
WDT clock source is system clock.
WDT clock source is Real-Time Clock source (32 kHz on-chip
oscillator or 50/60 Hz input as set by RTC_CTRL[4]).
WDT clock source is internal RC oscillator (10 kHz typical).
Reserved.
WDT_CLK = 00 WDT time-out period is 2
WDT_CLK = 01 WDT time-out period is 2
WDT_CLK = 10 WDT time-out period is 2
WDT_CLK = 11 Reserved.
WDT_CLK = 00 WDT time-out period is 2
WDT_CLK = 01 WDT time-out period is 2
WDT_CLK = 10 WDT time-out period is 2
WDT_CLK = 11 Reserved.
WDT_CLK = 00 WDT time-out period is 2
WDT_CLK = 01 WDT time-out period is 2
WDT_CLK = 10 WDT time-out period is 2
WDT_CLK = 11 Reserved.
WDT_CLK = 00 WDT time-out period is 2
WDT_CLK = 01 WDT time-out period is 2
WDT_CLK = 10 WDT time-out period is 2
WDT_CLK = 11 Reserved.
Product Specification
27
17
15
25
14
13
22
11
9
18
7
5
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
clock cycles.
eZ80F91 MCU
Watchdog Timer
118