EZ80F91NA050SG Zilog, EZ80F91NA050SG Datasheet - Page 77
![IC ACCLAIM MCU 256KB 144-BGA](/photos/12/15/121558/269-144-bga_sml.jpg)
EZ80F91NA050SG
Manufacturer Part Number
EZ80F91NA050SG
Description
IC ACCLAIM MCU 256KB 144-BGA
Manufacturer
Zilog
Series
eZ80® Acclaim!®r
Specifications of EZ80F91NA050SG
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
Processor Series
EZ80F91x
Core
eZ80
Data Bus Width
8 bit
Data Ram Size
16 KB
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
32
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Development Tools By Supplier
eZ80F910300ZCOG
Minimum Operating Temperature
0 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
269-3870
EZ80F91NA050SG
EZ80F91NA050SG
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EZ80F91NA050SG
Manufacturer:
ZILOG
Quantity:
20 000
- Current page: 77 of 384
- Download datasheet (3Mb)
PS019215-0910
Input/Output Chip Select Operation
Wait States
I/O chip selects will be active only when the CPU is performing I/O instructions. Because
the I/O space is separate from the memory space in the eZ80F91 device, a conflict
between I/O and memory addresses never occurs.
The eZ80F91 supports a 16-bit I/O address. The I/O chip select logic decodes the High
byte of the I/O address, ADDR[15:8]. Because the upper byte of the address bus,
ADDR[23:16], is ignored, the I/O devices are always accessed from memory mode (ADL
or Z80
always ignored.
Four I/O chip selects are available with the eZ80F91 device. To generate a particular I/O
chip select, the following conditions must be satisfied:
•
•
•
•
•
•
If all of the foregoing conditions are met to generate an I/O chip select, then the following
results occur:
•
•
•
For each of the chip selects, programmable Wait states are asserted to provide external
devices with additional clock cycles to complete their Read or Write operations. The
number of wait states for a particular chip select is controlled by the 3-bit field
CSx_WAIT (CSx_CTL[7:5]). The Wait states are independently programmed to provide 0
to 7 Wait states for each chip select. The Wait states idle the CPU for the specified number
of system clock cycles.
The chip select is enabled by setting CSx_EN to 1.
The chip select is configured for I/O by setting CSX_IO to 1.
An I/O chip select address match occurs—ADDR[15:8] = CSx_LBR[7:0].
No higher-priority (lower-number) chip select meets the above conditions.
The I/O address is not within the on-chip peripheral address range
On-chip peripheral registers assume priority for all addresses where:
0000h ADDR[15:0] 00FFh
An I/O instruction must be executing.
The appropriate chip select—CS0, CS1, CS2, or CS3 is asserted (driven Low).
IORQ is asserted (driven Low).
Depending on the instruction, either RD or WR is asserted (driven Low).
®
). The MBASE offset value used for setting the Z80 MEMORY mode page is also
Chip Selects and Wait States
Product Specification
0000h–00FFh
eZ80F91 MCU
.
68
Related parts for EZ80F91NA050SG
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![Z8018218FSC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
Communication Controllers, ZILOG INTELLIGENT PERIPHERAL CONTROLLER (ZIP)
Manufacturer:
Zilog, Inc.
Datasheet:
![Z8F64200100KITG](/photos/9/20/92054/z8f64200100kitg_tmb.jpg)
Part Number:
Description:
KIT DEV FOR Z8 ENCORE 16K TO 64K
Manufacturer:
Zilog
Datasheet:
![Z8F08A28100KITG](/photos/9/22/92241/z8f08a28100kitg_tmb.jpg)
Part Number:
Description:
KIT DEV Z8 ENCORE XP 28-PIN
Manufacturer:
Zilog
Datasheet:
![Z8F08200100KITG](/photos/9/22/92242/z8f08200100kitg_tmb.jpg)
Part Number:
Description:
DEV KIT FOR Z8 ENCORE 8K/4K
Manufacturer:
Zilog
Datasheet:
![Z8F04A28100KITG](/photos/9/22/92243/z8f04a28100kitg_tmb.jpg)
Part Number:
Description:
KIT DEV Z8 ENCORE XP 28-PIN
Manufacturer:
Zilog
Datasheet:
![Z8F08200100KIT](/images/manufacturer_photos/0/7/729/zilog_tmb.jpg)
Part Number:
Description:
DEV KIT FOR Z8 ENCORE 4K TO 8K
Manufacturer:
Zilog
Datasheet:
![Z86C6116FSC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
CMOS Z8 microcontroller. ROM 16 Kbytes, RAM 256 bytes, speed 16 MHz, 32 lines I/O, 3.0V to 5.5V
Manufacturer:
Zilog, Inc.
Datasheet:
![Z86E0208PSC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
Low-cost microcontroller. 512 bytes ROM, 61 bytes RAM, 8 MHz
Manufacturer:
Zilog, Inc.
Datasheet:
![Z86E40](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
Z8 4K OTP Microcontroller
Manufacturer:
Zilog, Inc.
Datasheet:
![Z88C0020VEC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
CMOS SUPER8 ROMLESS MCU
Manufacturer:
Zilog, Inc.
Datasheet:
![Z86E0812SSC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
SL1866 CMOSZ8 OTP Microcontroller
Manufacturer:
Zilog, Inc.
Datasheet:
![Z86E0812PSC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
SL1866 CMOSZ8 OTP Microcontroller
Manufacturer:
Zilog, Inc.
Datasheet:
![Z86E0412PSC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
OTP (KB) = 1, RAM = 125, Speed = 12, I/O = 14, 8-bit Timers = 2, Comm Interfaces Other Features = Por, LV Protect, Voltage = 4.5-5.5V
Manufacturer:
Zilog, Inc.
Datasheet:
![Z9023306PSC](/images/manufacturer_photos/0/7/730/zilog__inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Zilog, Inc.
Datasheet: