EZ80F91AZA50EG Zilog, EZ80F91AZA50EG Datasheet - Page 103
EZ80F91AZA50EG
Manufacturer Part Number
EZ80F91AZA50EG
Description
IC ACCLAIM MCU 256KB 144LQFP
Manufacturer
Zilog
Series
eZ80® AcclaimPlus!™r
Datasheet
1.EZ80F91AZA50SG.pdf
(387 pages)
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
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PS027001-0707
RAM Address Upper Byte Register
The RAM_ADDR_U register defines the upper byte of the address for on-chip RAM.
If enabled, RAM addresses assume priority over all Chip Selects. The external Chip Select
signals are not asserted if the corresponding RAM address is enabled. See
Table 33. RAM Address Upper Byte Register
Bit
Reset
CPU Access
Note: R/W = Read/Write.
Bit
Position
[7:0]
RAM_ADDR_U
Value Description
00h–
FFh
This byte defines the upper byte of the RAM address. When
enabled, the general-purpose RAM address space ranges from
{RAM_ADDR_U, E000h} to {RAM_ADDR_U, FFFFh}. When
enabled, the EMAC RAM address space ranges from
{RAM_ADDR_U, C000h} to {RAM_ADDR_U, DFFFh}.
R/W
7
1
R/W
6
1
R/W
5
1
R/W
4
1
(RAM_ADDR_U = 00B5h)
R/W
3
1
Product Specification
Random Access Memory
R/W
2
1
eZ80F91 ASSP
Table
R/W
1
1
33.
R/W
0
1
95
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