DS80C310-QNG/T&R Maxim Integrated Products, DS80C310-QNG/T&R Datasheet - Page 13

• Manufacturer Part Number: DS80C310-QNG/T&R
• Description: IC MCU HI SPEED 25MHZ IND 44PLCC
• Manufacturer: Maxim Integrated Products
• Series: 80Cr

Specifications of DS80C310-QNG/T&R

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SIO, UART/USART
• Peripherals: Brown-out Detect/Reset, POR
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-LCC, 44-PLCC
• Processor Series: DS80C310
• Core: 8051
• Data Bus Width: 8 bit
• Program Memory Size: 64 KB
• Data Ram Size: 64 KB
• Interface Type: UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No

AC ELECTRICAL CHARACTERISTICS (Note 1)
Note 1:
Note 2:
Oscillator
Frequency
ALE Pulse Width
Port 0 Address Valid to ALE Low
Address Hold after ALE Low
ALE Low to Valid Instruction In
ALE Low to PSEN Low
PSEN Pulse Width
PSEN Low to Valid Instruction In
Input Instruction Hold after PSEN
Input Instruction Float after PSEN
Port 0 Address to Valid Instruction In
Port 2 Address to Valid Instruction In
PSEN Low to Address Float
are guaranteed by design and not product tested. AC electrical characteristics assume 50% duty cycle for the oscillator, and
are not 100% tested but are guaranteed by design. All signals characterized with load capacitance of 80pF except Port 0, ALE,
PSEN, and WR with 100pF. Interfacing to memory devices with float times (turn-off times) over 25ns can cause contention.
This does not damage the parts, but rather causes an increase in operating current. Port 2 and ALE timing changes in relation
to duty cycle variation.
All parameters apply to both commercial and industrial temperature operation unless otherwise noted. Specifications to -40C
Address is held in a weak latch until overdriven by external memory.
PARAMETER
External Oscillator
External Crystal
SYMBOL
1/t
t
t
t
t
t
t
t
LLAX1
t
t
t
t
t
AVIV1
AVIV2
AVLL
LHLL
PLAZ
LLPL
PLPH
PXIX
LLIV
PLIV
PXIZ
CLCL
13 of 22
MIN
40
10
55
0
1
2
7
0
25MHz
(Note 2)
(Note 2)
MAX
25
25
56
41
26
71
81
1.5t
0.5t
0.5t
0.5t
2t
MIN
CLCL
18
13
VARIABLE
0
1
CLCL
5
CLCL
5
CLCL
CLCL
0
CLOCK
-5
-
-
-
-
2.5t
3.5t
(Note 2)
(Note 2)
2t
t
3t
MAX
CLCL
CLCL
CLCL
25
25
20
20
20
25
CLCL
CLCL
-5
-
-
-
-
UNITS
DS80C310
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns