N87C51RB24 Intel, N87C51RB24 Datasheet - Page 19

• Manufacturer Part Number: N87C51RB24
• Description: IC MCU 8BIT 16K 24MHZ OTP 44PLCC
• Manufacturer: Intel
• Series: 87Cr

Specifications of N87C51RB24

• Rohs Status: RoHS non-compliant
• Core Processor: MCS 51
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: SIO
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Eeprom Size: -
• Data Converters: -
• Other names: 807306

NOTE
Any other combination of the lock bits is not defined
EPROM PROGRAMMING AND VERIFICATION CHARACTERISTICS
(T
1
2
3
4
A
Program Lock Bits
e
V
I
1 TCLCL
TAVGL
TGHAX
TDVGL
TGHDX
TEHSH
TSHGL
TGHSL
TGLGH
TAVQV
TELQV
TEHQZ
TGHGL
PP
Symbol
PP
LB1
21 C to 27 C V
U
P
P
P
LB2
U
U
P
P
LB3
CC
Programming Supply Voltage
Programming Supply Current
Oscillator Frequency
Address Setup to PROG Low
Address Hold after PROG
Data Setup to PROG Low
Data Hold after PROG
(Enable) High to V
V
V
PROG Width
Address to Data Valid
ENABLE Low to Data Valid
Data Float after ENABLE
PROG High to PROG Low
U
U
U
P
PP
PP
e
Setup to PROG Low
Hold after PROG
5V
No Program Lock features enabled (Code verify will still be encrypted by the
Encryption Array if programmed )
MOVC instructions executed from external program memory are disabled from
fetching code bytes from internal memory EA is sampled and latched on
Reset and further programming of the EPROM is disabled
Same as 2 also verify is disabled
Same as 3 also external execution is disabled
Table 5 Program Lock Bits and the Features
Parameter
g
20% V
PP
SS
e
0V)
Protection Type
48TCLCL
48TCLCL
48TCLCL
48TCLCL
48TCLCL
12 5
Min
10
10
90
10
4
0
48TCLCL
48TCLCL
48TCLCL
Max
13 0
110
75
6
8XC51RA RB RC
Units
MHz
mA
V
s
s
s
s
19