EZ80F91AZA50EG Zilog, EZ80F91AZA50EG Datasheet - Page 167

IC ACCLAIM MCU 256KB 144LQFP

EZ80F91AZA50EG

Manufacturer Part Number
EZ80F91AZA50EG
Description
IC ACCLAIM MCU 256KB 144LQFP
Manufacturer
Zilog
Series
eZ80® AcclaimPlus!™r
Datasheet

Specifications of EZ80F91AZA50EG

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
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
269-4563

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EZ80F91AZA50EG
Manufacturer:
Zilog
Quantity:
10 000
Real-Time Clock
PS027001-0707
System Clock
Note:
Real-Time Clock Overview
The Real-Time Clock (RTC) maintains time by keeping count of seconds, minutes, hours,
day-of-the-week, day-of-the-month, year, and century. The current time is kept in 24-hour
format. The format for all count and alarm registers is selectable between binary and
binary-coded-decimal (BCD) operations. The calendar operation maintains the correct
day-of-the-month and automatically compensates for leap year. A simplified block
diagram of the RTC and the associated on-chip, low-power, 32 kHz oscillator is illustrated
in
demonstrated in
For users NOT using the RTC the following RTC signal pins must be connected as follows
to avoid a 10 uA leakage within the RTC circuit block. RTC_Xin (pin 61) must be left
floating or connected to ground.
Figure 35. Real-Time Clock and 32 kHz Oscillator Block Diagram
Figure
IRQ
ADDR[15:0]
DATA[7:0]
Real-Time Clock
35. Connections to an external battery supply and 32 kHz crystal network is also
V
RTC Clock
DD
Figure
(RTC_CTRL[4])
CLK_SEL
35.
Enable
V
DD
Low-Power
32 KHz Oscillator
RTC_X
RTC_X
RTC_V
DD
OUT
IN
32 KHz
Crystal
R1
Product Specification
Battery
eZ80F91 ASSP
Real-Time Clock
C
C
159

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