Product Replacement for the 58xx Family of Serial-Input and Parallel-Input, Latched Sink Drivers

Introduction

The 58xx family of serial-input and parallel-input, latched sink drivers has been a very successful product line for over 14 years. However, technological advancements in the fabrication process have lead to the design of a more efficient and more cost effective solution with added features: the 68xx family of serial-input and parallel-input, latched sink drivers. Although the 68xx family is advertised as a pin-for-pin replacement for the 58xx family, there are some important differences between them that could affect some applications.

Comparison of Features and Notable Differences

58xx 68xx
Logic Supply Voltage: VDD = 5 V to 12 V. Logic Supply Voltage: VDD = 3 V to 5.5 V.
Absolute Maximum = 7 V
Logic Supply Current (1 output ON):
5800, 5801: Typical ≈ 0.4 mA, Max = 1 mA
5821: Typical ≈ 0.5 mA, Max = 2.4 mA
5841: Typical ≈ 1.2 mA, NS
5832: Typical ≈ 1.7 mA, Max = 5 mA
5833: Typical ≈ 0.55 mA, Max = 1 mA
Logic Supply Current (1 output ON):
6800, 6801: Typical ≈ 0.8 mA, Max = 1 mA
6821: Typical ≈ 0.7 mA, Max = 2 mA
6841: Typical ≈ 0.7 mA, Max = 2 mA
6832: Typical ≈ 4.4 mA, Max = 6 mA (increased base drive provides high current/low VCE(sat) outputs at lower supply voltages and lower temperatures)
6833: Typical ≈ 0.82 mA, Max = 2 mA
Logic Supply Current (All outputs ON): 5841: Typical ≈ 4.6 mA, Max = 8.0 mA Logic Supply Current (All outputs ON): 6841: Typical ≈ 5 mA, NS
Logic Supply Current (All Outputs OFF, All inputs = 0 V):
5800, 5801: Typical ≈ 50 µA, Max = 100 µA
5821: Typical ≈ 20 µA, Max = 1.6 mA
5841: Typical ≈ 700 µA, Max = 1.6 mA
5832: Typical < 1 µA, Max = 50 µA
5833: Typical < 1 µA, Max = 50 µA
Logic Supply Current (All Outputs OFF, All inputs = 0 V):
6800, 6801: Typical ≈ 130 µA, Max = 150 µA
6821: Typical ≈ 120 µA, NS
6841: Typical ≈ 140 µA (improved), NS
6832: Typical ≈ 50 µA, Max = 100 µA
6833: Typical ≈ 10 µA, Max = 100 µA
Logic Supply Current (All Outputs OFF, OE = H, ST = H, P1 through P8 = L):
5821: Typical < 1 µA, NS
5841: Typical ≈ 730 µA, NS
Logic Supply Current (All Outputs OFF, OE = H, ST = H, P1 through P8 = L):
6821: Typical ≈ 20 µA, Max = 100 µA
6841: Typical ≈ 30 µA, Max = 100 µA (improved)
No Power-On Reset:
5800, 5801, 5821, 5832, 5833, 5841
No Power-On Reset:
6800, 6801, 6832, 6833
Power-On Reset:
6821, 6841
No Schmitt Triggers on Inputs:
5800, 5801, 5821, 5832, 5833, 5841
No Schmitt Triggers on Inputs:
6800, 6801
Schmitt Triggers on Inputs (improved noise immunity):
6821, 6832, 6833, 6841
VCE(SAT):
5800, 5801: Typical ≈ 1.3 V @ 350 mA
5821, 5841: Typical ≈ 1.3 V @ 350 mA
5832: Typical ≈ 0.4 V @ 100 mA
5833: Typical ≈ 1.4 V @ 100 mA
Improved VCE(SAT) with higher current gain:
6800, 6801: Typical ≈ 1 V @ 350 mA
6821, 6841: Typical ≈ 1 V @ 350 mA
6832: Typical ≈ 0.275 V @ 100 mA
6832: Typical ≈ 1 V @ 100 mA
High-Speed Data Input Rate:
Maximum specified Clock Frequency = 3.3 MHz (See data sheet for exact timing specifications).
High-Speed Data Input Rate:
Maximum Specified Clock Frequency = 10 MHz (devices may react to data rates in excess of 20 MHz). See data sheet for exact timing specifications.
Output Fall Times (TF):
5800, 5801: Typical ≈ 40 ns, NS
5821, 5841: Typical ≈ 150 ns, NS
5832: Typical ≈ 50 ns, Max = 1 µs
5833:Typical ≈ 50 ns, Max = 500 ns
Output Fall Times (TF):
6800, 6801: Typical ≈ 30 ns, Max = 1 µs
6821, 6841: Typical ≈ 50 ns, Max = 1 µs (faster)
6832: Typical ≈ 50 ns, Max = 1 µs
6833: Typical ≈ 50 ns, Max = 500 ns
Output Rise Times (TR):
5800, 5801: Typical ≈ 100 ns, NS
5821, 5841: Typical ≈ 150 ns, NS
5832: Typical ≈ 50 ns, Max = 1 µs
5833: Typical ≈ 20 ns, Max = 500 ns
Output Rise Times (TR):
6800, 6801: Typical ≈ 50 ns, Max = 1 µs (faster)
6821, 6841: Typical ≈ 150 ns, Max = 1 µs
6832: Typical ≈ 20 ns, Max = 1 µs (faster)
6833: Typical ≈ 20 ns, Max = 1 µs
Propagation Delays (TPHL), TON:
5800, 5801: Typical ≈ 200 ns, Max = 500 ns
5821, 5841: Typical ≈ 660 ns, NS
5832: Typical ≈ 750 ns, NS
5833: Typical ≈ 100 ns, NS
Reduced Propagation Delays (TPHL), TON:
6800, 6801: Typical ≈ 40 ns, Max = 500 ns
6821, 6841: Typical ≈ 150 ns, Max = 1 µs
6832: Typical ≈ 70 ns, Max = 1 µs
6833: Typical ≈ 30 ns, Max = 1 µs
Propagation Delays (TPLH), TOFF:
5800, 5801: Typical ≈ 475 ns, Max = 500 ns
5821, 5841: Typical ≈ 360 ns, NS
5832: Typical ≈ 175 ns, NS
5833: Typical ≈ 300 ns, NS
Reduced Propagation Delays (TPLH), TOFF:
6800, 6801: Typical ≈ 40 ns, Max = 500 ns
6821, 6841: Typical ≈ 50 ns, Max = 1 µs
6832: Typical ≈ 30 ns, Max = 1 µs
6833: Typical ≈ 40 ns, Max = 1 µs
5832/5833 available in the DIP and PLCC package. 6832/6833 available only in the PLCC package.
All other 68xx devices are available in the same packages.

Note:

  • Typical parameters were taken from one random lot of 58xx material and one random lot of 68xx material for comparison.
  • Typical parameters were derived using the same conditions.
  • Significant differences and new features are noted in red.
  • Max = Maximum specified value found in the data sheet.
  • NS = Not Specified

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