DS87C530-QNL Maxim Integrated Products, DS87C530-QNL Datasheet - Page 36

• Manufacturer Part Number: DS87C530-QNL
• Description: IC MCU EPR/ROM W/RTC 33MZ 52PLCC
• Manufacturer: Maxim Integrated Products
• Series: 87Cr

Specifications of DS87C530-QNL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-LCC, 52-PLCC
• Processor Series: DS87C530
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: UART
• Maximum Clock Frequency: 33 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: -
• Data Converters: -
• Other names: DS87C530QNL

MOVX CHARACTERISTICS USING STRETCH MEMORY CYCLES
Data Access ALE Pulse Width
Port 0 Address Valid to ALE Low
Address Hold After ALE Low for
MOVX Write
Data Hold After Read
Data Float After Read
ALE Low to Valid Data In
Port 0 Address to Valid Data In
Port 2 Address to Valid Data In
ALE Low to RD or WR Low
Port 0 Address to RD or WR Low
Port 2 Address to RD or WR Low
Data Valid to WR Transition
Data Hold After Write
Note 1:
RD Pulse Width
RD Low Valid Data In
RD Low to Address Float
RD or WR High to ALE High
WR Pulse Width
PARAMETER
t
selection.
MCS
is a time period related to the Stretch memory cycle selection. The following table shows the value of t
DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AVWL1
AVWL2
t
AVDV1
AVDV2
LHLL2
AVLL2
LLAX2
WLWH
QVWX
WHQX
WHLH
RLDV
RHDX
RHDZ
LLWL
RLRH
LLDV
RLAZ
36 of 45
0.5t
0.5t
1.5t
2.5t
1.5t
0.5t
2t
2t
2t
2t
2t
t
t
t
t
t
t
t
t
MCS
MCS
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
MIN
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
-6
-4
VARIABLE CLOCK
0
-10
-10
-5
-7
-5
-9
-5
-5
-5
-5
-5
-7
-6
-10
-10
-17
-16
-5
-5
t
t
t
MCS
MCS
MCS
2.5t
3.5t
0.5t
2t
3t
(Note 1)
2t
t
t
t
t
+2.5
MAX
MCS
+2
CLCL
CLCL
CLCL
CLCL
+t
CLCL
CLCL
CLCL
CLCL
CLCL
10
CLCL
CLCL
-24
+5
+5
LCL
-22
-5
-29
-5
-31
-37
+5
-26
-29
-37
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MCS
for each Stretch
STRETCH
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
—
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
>0